Homework Help: Math

Branches of Math

Recent Homework Questions About Math

math
Some years in the 20th century have 4 different odd digits. How many of those years have the sum of the digits greater than 20?
Wednesday, April 10, 2013 at 5:13pm

math
bob and jim had a total of 90 marbles. bob had half a dozen more than jim. how many marbles did jim have.
Wednesday, April 10, 2013 at 5:12pm

Math
Darren is making a map of population density in Central Florida. The two isosceles triangles below show the most and least populated areas according to Darren's results. The base of the large triangle covers 96 miles and the base of the small triangle covers 24 miles. If ...
Wednesday, April 10, 2013 at 5:05pm

math
there was a problem on the test 89__89 with a line on top of both numbers and there was one like this also 94___95 with a line on top of the 95. I am not sure if i need to round
Wednesday, April 10, 2013 at 4:34pm

math
weight of car A is 15 lb less than the weight of two B cars. The truck weighs 2155 lb more than car A. What is the curb weight of each vehicle?
Wednesday, April 10, 2013 at 4:32pm

math
You have one board that is 7/8 foot long. You want two 1/4 foot pieces. How much will be left after you cut the two pieces?
Wednesday, April 10, 2013 at 4:31pm

math
there was a problem on the test that had 89___89 but there was a line on top of both numbers. what does it mean also they had 95___96 with the line on top aswell and i dont know if i need to round them
Wednesday, April 10, 2013 at 4:31pm

math
a blue rectangular tile and a red rectangular tile are similar. the blue tile has a length of 10 inches and a perimeter of 30 inches. the red tile has a length of 6 inches. what is the perimeter of the red tile?
Wednesday, April 10, 2013 at 4:31pm

math
There are 27 students in Mrs. Reeds class. The number of boys and number of girls are both composite numbers. There are 3 more girls than boys. How many girls and how many boys are in the class?
Wednesday, April 10, 2013 at 4:29pm

math
There are 24 students in Mr.Hills class. The number of boys and number of girls are both prime numbers. There are 2 more boys then girls. How many boys and how many girls are in each class?
Wednesday, April 10, 2013 at 4:22pm

math
You lift a box that weighs 93 N a distance of 1.5 m. How much work did you do?
Wednesday, April 10, 2013 at 4:20pm

math
Dad baked a batch of cookies. My brother ate half my mom ate a fourth of the batch. Dad ate 3 and I ate the last two. How many cookie did dad bake? PLEASE help me figure this problem out?
Wednesday, April 10, 2013 at 4:11pm

Math (Percentage)
Chet bought a rug that cost $280. He had a coupon for a 10% discount. 1. How much money did he save with the discount? 2. How much did he pay for the rug?
Wednesday, April 10, 2013 at 4:03pm

math
on a biology test a student answers 25 questions correct but doesnt pass. on second attempt he gets 37 correct. what is the percent of increase
Wednesday, April 10, 2013 at 3:56pm

math
The following rational function describes blood concentration of a certain drug taken via IV over time: f(x)=x+1/x Find: a.the horizontal or oblique asymptote(s), if any, b.the vertical asymptote(s),if any, c. describe their possible meanings. Can somebody please help me solve...
Wednesday, April 10, 2013 at 3:43pm

math help again
which of the following is the smallest value a. 0.22 b. 0.2 c. 0.202 d. 0.022 e. 2.00 ??
Wednesday, April 10, 2013 at 2:06pm

Math (Number Theory )
An ordered triple of real numbers (a,b,c) is called friendly, if each number is equal to the product of the other 2. How many friendly triples are there? Details and assumptions The numbers need not be equal to each other. The numbers need not to be pairwise distinct (which ...
Wednesday, April 10, 2013 at 12:36pm

MATH ALGEBRA
Holly has a rectangular garden that measures 12m by 14m. SHe wants to increase the area to 255m^2 by increasing the width and the length by the same amount. What will the dimensions be of the new garden ? -solving that involves quadratic equations
Wednesday, April 10, 2013 at 11:13am

Math
Can someone please help me! A regular 6sided die is rolled three times. Find the probability of each event: a) Three 6s in a row b) 5,1,even c) Odd, greater than 2,5 Show all work I have been looking at examples and trying all night and I can't figure this out.
Wednesday, April 10, 2013 at 10:56am

Math
A man is cutting a board that is 6 3/4 ft into pieces that are 8 inches each.He will make as many as 8 inch boards as he can.How much wood will be remaining from the original piece when the man finishes cutting?
Wednesday, April 10, 2013 at 10:52am

Math
Each costume requires 2 2/3(two and twothirds) of fabric.Mrs Joy has 18 1/2yds of fabric.How many costumes can she complete.
Wednesday, April 10, 2013 at 10:03am

Math
In the first quarter of a football game ,a quarterback threw for 25 yds and was sacked for -36 yds.What was the quarterback's total yardage for the first quarter?
Wednesday, April 10, 2013 at 10:01am

math
I just need help with this. Write the series in sigma notation. 1/4 + 1/2+ 3/4 + 1 + 5/4 + 3/2 5 A.) 1/4 sigma N n=1 6 B.) 1/4 sigma n n=1 5 C.)sigma n/n+3 n=1 6 D.)sigma n/n+3 n=1
Wednesday, April 10, 2013 at 9:35am

math
ABC is a triangle with circumcenter O, obtuse angle BAC and AB<AC. M and N are the midpoints of BC and AO respectively. Let D be the intersection of MN with AC. If ...
Wednesday, April 10, 2013 at 7:51am

Math
A car wheel has a diameter of 0.4 meters. Work out how many full turns the wheel makes when the car travels a kilometer
Wednesday, April 10, 2013 at 7:50am

~ Math Statistic
A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38 43.4 50.7 35.4 39.3...
Wednesday, April 10, 2013 at 7:42am

math
Find the coefficient of x^3Y^2z^2 in (x+y+z)^7
Wednesday, April 10, 2013 at 6:16am

Seth
graph this equation:6x^2+18x-24=0
Wednesday, April 10, 2013 at 6:07am

Please help me...Please....Math
Find the coordinates by solving and graphing the equation : -x^2-x+30=0
Wednesday, April 10, 2013 at 5:40am

math
The parallel sides of a trapezium are 6cm and 5cm long and 4cm apart.what is the area of the trapezium?
Wednesday, April 10, 2013 at 2:09am

math-7th grade algebra 1
Please show the steps and explain how to do this as well. 3√8 · 2√5
Wednesday, April 10, 2013 at 1:18am

math algebra 1
Please show the steps and explain how to do this as well. 3√8 · 2√5
Wednesday, April 10, 2013 at 1:16am

math
Please show the steps and explain how to do this as well. 3√8 · 2√5
Wednesday, April 10, 2013 at 1:07am

Math
If an area of a parallelogram is 8x+2 with a height of 4. What is the length of the base?
Wednesday, April 10, 2013 at 12:56am

math
37×52
Wednesday, April 10, 2013 at 12:49am

Math
the cost of 24 concrete blocks is$50.88 calculate the cost of 42 blocks
Wednesday, April 10, 2013 at 12:42am

math
i need to find an equation for (7,1)
Tuesday, April 9, 2013 at 11:52pm

math
where is surface area and volume of rectangular prism used in real-life
Tuesday, April 9, 2013 at 11:48pm

math
julia picked 2 cards from a face down stack of cards containing 4 hearts 4 diamonds 4 clubs and 4 spades. Make a treediagram to find all the possible combinations for the 2 cards Julia picked
Tuesday, April 9, 2013 at 11:13pm

MATH
A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38 43.4 50.7 35.4 39.3...
Tuesday, April 9, 2013 at 11:07pm

math help please
solve the following quadratic equation and show steps 2z^4 +14z^3 + 20z^2
Tuesday, April 9, 2013 at 11:03pm

Math
Tim practiced batting at a batting cage. For 25 cdnts he got 10 pitches . How many pitches did he get for 1.25?
Tuesday, April 9, 2013 at 10:51pm

math
height = 15 ft area = 285 ft2
Tuesday, April 9, 2013 at 10:49pm

math
The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even point?
Tuesday, April 9, 2013 at 10:46pm

Math
The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even point?
Tuesday, April 9, 2013 at 10:45pm

Math
The teams ratio of games won to games played was 9 to 11. If the team played 66 games, how many did the team win? Explain your answer.
Tuesday, April 9, 2013 at 10:40pm

math
Which of the following gives a set of numbers that are all solutions of the inequality x + 6 < 9 ? a. { -10, -7, -2, -1 } b. { -6, -3, 0, 3 } c. { -5, -1, 3, 6 } d. { 4,7, 10, 16 }
Tuesday, April 9, 2013 at 10:23pm

Math
One side of a square frame measures 12 inches. What is the perimeter of the frame? Is this right 12*4=48 Perimeter =48
Tuesday, April 9, 2013 at 10:02pm

Calculus,math
Constuct a rectangular box with a square base that holds a given volume V0 cm^3.? The cost of the material for the sides is 1 cent per cm^2, while the top and bottom costs 3 cents per cm^2. Find, in terms of V0, the dimensions of the box that will minimize the cost of the ...
Tuesday, April 9, 2013 at 10:01pm

math
Asia is about 3 times the size of antarctica together the 2 continents make up 2/5 of earth's land . what fraction of earth's land does antarctica make up?
Tuesday, April 9, 2013 at 9:58pm

6th grade math
How to figure if 60 cookies were baked and 7/12 were given away, how many are left?
Tuesday, April 9, 2013 at 9:40pm

Math Ms. Sue please
1. You flip a coin 30 times and get heads 11 times, so the chance of getting heads is eleven over thirty . Is this an example of theoretical or experimental probability? (1 point) theoretical experimental 2. You have made 3 out of 10 of your last free throws. How many free ...
Tuesday, April 9, 2013 at 9:36pm

math
3xsquared + 27 = 5 3xsquared -5x = -3xsquared + 6 SOLVE
Tuesday, April 9, 2013 at 9:31pm

math
xsquared + 8x- 10 =1
Tuesday, April 9, 2013 at 9:19pm

Math
a cardbord gift-box has a surface area of 478cm2 and a volume of 570cm3. what are the length,width,and height of the carbox gift-box? I Need Help
Tuesday, April 9, 2013 at 9:08pm

math
The platform is 1 foot by 4 feet by 6 feet. What ha the surface area of the platform?
Tuesday, April 9, 2013 at 9:04pm

math
A population of animals oscillates between a low of 1098 on January 1 (t = 0) and a high of 2344 on July 1 (t = 6). (a) Find a formula for the population, P, in terms of the time, t, in months.
Tuesday, April 9, 2013 at 8:51pm

math
help
Tuesday, April 9, 2013 at 8:51pm

Math
Find the circumference of the circle. Round to the nearest tenth. The middle of the circle is 44mm
Tuesday, April 9, 2013 at 8:49pm

math
1. 2xsquared-7x=-6 2. xsquared + 12x + 1= 0 3. xsquared + 6x + 20 = 0
Tuesday, April 9, 2013 at 8:33pm

math algebra
the perimeter of a basketball court is 268 feet. the area is 4200 ft2. find the dimensions. using quadratics
Tuesday, April 9, 2013 at 8:28pm

math
Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play?
Tuesday, April 9, 2013 at 8:26pm

math (Reiny please)
how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0
Tuesday, April 9, 2013 at 8:11pm

math
4xsquared+ 4x -3 =0 SOLVE
Tuesday, April 9, 2013 at 8:08pm

Math
You have 2 pairs of shorts, 2 pairs of shoes, 2 shirts how many combinations could you wear
Tuesday, April 9, 2013 at 7:56pm

Math
I am really confused.i don't understand.please help me figure this out W-8=26 W-8+_=26+_ W=_
Tuesday, April 9, 2013 at 7:55pm

math(check my answers)
SOLVE THE FOLLOWING EQAUTION BY COMPLETING THE SQUARE: 3. xsquared - 8x - 10 = 0 xsqaured -8x=10 xsquared-8x+(8/2)sqaured=10+(8/2)sqaured xsquared-8x+16=26 Answer: xsqaured-8x+16=26 WHAT DID I DO WRONG?
Tuesday, April 9, 2013 at 7:51pm

math
Anyone know what 1/2 is in simplest form??
Tuesday, April 9, 2013 at 7:50pm

math
If the distance between location A to B is straight east 10 km. then from B to C is Nw 18KM How far would you be from point C to A. Would you not need to more information then this to calculate this answer?
Tuesday, April 9, 2013 at 7:49pm

Math
R+11=19 r+11-_=19-_ r=_
Tuesday, April 9, 2013 at 7:43pm

Math
A bag contains 9 tiles numbered 1 to 9. P(4) one-ninth = experimental; the result is found by repeating an experiment. experimental; the result is based on the number of possible outcomes. theoretical; the result is found by repeating an experiment. theoretical; the result is ...
Tuesday, April 9, 2013 at 7:36pm

Math
W-8=26 w-8+_=28+_. W=
Tuesday, April 9, 2013 at 7:31pm

math
If 6 more than 8 times a number equals 30, what's the number?
Tuesday, April 9, 2013 at 7:21pm

Math
The output values in a function table are 11, 17, and 23. The rule for the table is output=3m-4. What are the input values ...
Tuesday, April 9, 2013 at 6:48pm

math
is there a value for x that makes the statement true, if so find x. explain(x+2)^2=x^2+2^2
Tuesday, April 9, 2013 at 6:31pm

Math
What is the mean number of votes for the snow cone flavors? Cherry 40 Strawberry 7- Grape 30 Lime 20 Rainbow 40 A.180 B.36 C.40 D.18 C The range of a set of numbers is 52. The number with the greatest value in the set is 248. What is the number with the least value? A.52 B.204...
Tuesday, April 9, 2013 at 6:29pm

math
find p such that 3x^p(4x^2p+^3+2x^3p-2)=12x^12+6x^10
Tuesday, April 9, 2013 at 6:26pm

math
1. Pat needed more brushes. Pat knew that the Paint Spot was 7/10 of a kilometer away. Sandy said, "People's Paint Store is 3/10 of a kilometer closer." How far away was People's Paint Store? 2. Sandy brought a large bottle of soda to work. It was 3/4 full. ...
Tuesday, April 9, 2013 at 6:17pm

math
how do i find the surface area of a rectangular prsim
Tuesday, April 9, 2013 at 6:17pm

Math
I need some help. A biologist finds that the population of a certian type of bacteria double seach half-hour. An initial culture has 60 bacteria. 1. What is the population after 3 hours? 2. How long will it take for the number of bacteria to reach 983,040?
Tuesday, April 9, 2013 at 6:11pm

math
The total hours allotted for writing and oral competition is 2 three fifth hours. The writing competition is allotted 1 hour and five sixth. How many hours are allotted for the oral competition
Tuesday, April 9, 2013 at 6:08pm

Math
Andrew has 12 coins, all dimes and nickels, and they add up to $1.00. How many nickels does he have?
Tuesday, April 9, 2013 at 6:07pm

math
Emma weighed 6 pounds, 9 ounces when she was born. If her weight doubled by the time she was six months old, how much did she weigh then?
Tuesday, April 9, 2013 at 6:05pm

Math
If Kelly gave 1/3 of a pizza to Holly and 1/5 to Diane how much did she have left?
Tuesday, April 9, 2013 at 5:45pm

computer programming
how do I figure out the math problem for Excel 2010?
Tuesday, April 9, 2013 at 5:43pm

3rd grade math\
A hlaf dozen hair clip cost 43.90. maria wants to buy 4 hair clips. how much will she pay for them?
Tuesday, April 9, 2013 at 5:38pm

Math
I am in third grade and have a word problem that I don't understand. There is a picture of a retangular window with 12 little squares inside divided by wood. The question is how many feet of lights would be needed to hang around five windows like this one. There are no ...
Tuesday, April 9, 2013 at 5:31pm

Math
Factor this polynomial a^5b-a
Tuesday, April 9, 2013 at 5:15pm

3rd grade math
a package of 4 button costs $1.30. how much will 4 package cost?
Tuesday, April 9, 2013 at 5:14pm

3rd grade math
A hlaf dozen hair clip cost 43.90. maria wants to buy 4 hair clips. how much will she pay for them?
Tuesday, April 9, 2013 at 5:12pm

Math
1 1/8 in. = how many miles?
Tuesday, April 9, 2013 at 4:55pm

math
Bob and Jim had a total of 90 marbles. Bob had half a dozen more than Jim. How many marbles did Jim have?
Tuesday, April 9, 2013 at 4:52pm

Math
Bill earns 1 dime the first day, 2 dimes the second day, 3 dimes the third day, 4 dimes the fourth day, etc. How many days will it take him to earn $2.
Tuesday, April 9, 2013 at 4:51pm

third grade math
how do i 2- fracture each third
Tuesday, April 9, 2013 at 4:01pm

math
Larry and Shamir want to build identical houses. They bought a rectangular piece of land and divided it into two identical squares.Each square piece of land has a area of 2500 meter squared. What is the perimeter of the original rectangle?
Tuesday, April 9, 2013 at 3:52pm

math
if two squares have the same area of 2500 meters squared,when combined what is the perimeter?
Tuesday, April 9, 2013 at 3:29pm

math
if two squares have the same area of 2500 meters squared,when combined what is the perimeter?
Tuesday, April 9, 2013 at 3:28pm

math
A math contest consists of ten problems.Three points are given for each correct answer. One point is deducted for each incorrect answer. Andy answers all the problems and scores 18 points. How many correct answers does he have?
Tuesday, April 9, 2013 at 3:03pm

Math
What will the graph look like for a system of equations that has no solution? A. The lines will be perpendicular. B. The lines will cross at one point. C. Both equations will form the same line. D. The lines will be parallel. I think it is D..?
Tuesday, April 9, 2013 at 2:28pm

Math
Every time Mr. Cold born throws a ball of paper in the garbage can, the probability the ball goes in the cans is 3/4. What is the probability he misses 2 times in a row? Please show all work. Please help I don't understand probability
Tuesday, April 9, 2013 at 2:20pm

math
What is 2:1 and 1:2 in simplest form?
Tuesday, April 9, 2013 at 2:18pm

math
What are the intersection points of y = 1/x and y = 1/x^2? Is it x = 0 and x = 1? Thank You
Tuesday, April 9, 2013 at 2:01pm

Math
A bicycle trail is 7miles and 880 yards long.How many total yards is the bicycle trail
Tuesday, April 9, 2013 at 12:04pm

Math
What is the probability of tossing two coins and having them both show heads? Show all work. Please help I don't understand this.
Tuesday, April 9, 2013 at 11:01am

Math ( Number Theory )
How many numbers from 1 to 1000 inclusive can be expressed as the sum of k >= 2 consecutive positive integers for some value of k ? Sorry to post question from Brilliant, I got 997 integers, but it's wrong. If you think you can answer ...
Tuesday, April 9, 2013 at 10:37am

math
make a setof 15 numbers with landmarks. max152 range 25 mode 139 median 142
Tuesday, April 9, 2013 at 7:12am

math
In a manufacturing process, each item leaving an assembly line will be examined by two inspectors: A and B individually. Based on past experiences, Inspector A detects 60% of the defective items. If the defective items are not detected by Inspector A, 90% of them will be ...
Tuesday, April 9, 2013 at 6:34am

Math
A recipe for fruit punch calls for 2 1/2 c of orange juice, 1 1/3 c of pineapple juice, and 1 3/4 c of soda water. If June makes 4 times the recipe, how many cups of fruit punch will she have?
Tuesday, April 9, 2013 at 5:57am

math
The problem I am trying to solve is from AQA Mechanics M1 and is as follows: An object is moving in a plane. At time t=0, it is at the origin, O, and moving with velocity u. After 2 seconds it is at A where OA = -2i - 4j. After a further 3 seconds it is at B where AB = 10i - ...
Tuesday, April 9, 2013 at 5:14am

Math
Factorise fully: 5pq + 10p
Tuesday, April 9, 2013 at 4:33am

Math
15-(12(divided by)2)+(-3x4)
Tuesday, April 9, 2013 at 3:52am

Math
A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?
Tuesday, April 9, 2013 at 1:13am

math
All varieties of a certain brand of cookies are $3.50 A person buys peanut butter and chocolate chip cookies. Write an expression that tepresents the total cost.
Tuesday, April 9, 2013 at 12:17am

math
the world record for the men's long jump is 29 3/8 feet. the women's record for the same event is 24 88/48 feet. How many feet longer is the men's record?
Monday, April 8, 2013 at 11:21pm

Math
Find the magnitude of the resultant vector of two 5-pound forces that act on an object with an angle of 70° between them.
Monday, April 8, 2013 at 10:49pm

Math
For each 10-degree adjustment on your water heater thermostat, you can reduce carbon dioxide emissions by 500 pounds a year. By how many pounds will you reduce your carbon dioxide footprint if you turn down your water heater thermostat from 140¢ªF to 120¢ªF...
Monday, April 8, 2013 at 10:21pm

math
solve each system of equations by graphing y=-1/2x+5 y=3x-2
Monday, April 8, 2013 at 10:19pm

math
I am a decimal number and when you multiply me by the number that is 10 times greater than me you get the answer 291.6
Monday, April 8, 2013 at 10:13pm

Please help me solve it. Math
solve for the value of x: 6log (x^2+1)-x=0. please help me because I do not have any idea in this topic.
Monday, April 8, 2013 at 9:33pm

math
if less than half of the garden is planted with corn, then is it reasonable to estimate that 5/6 of the garden is planted with corn?
Monday, April 8, 2013 at 9:20pm

math
Considera compoound experment in which a nickel is flipped and then a quarter is flipped, need to know all the possible outcomes I came up with 4. correct? also need to know the probability of each possible outcome
Monday, April 8, 2013 at 9:20pm

Math
Billy has a board that's six and 2/3 feet long. He cuts it into 12 equal pieces. How long is each piece?
Monday, April 8, 2013 at 9:08pm

math
Say the price of a gallon of milk was raised from $3.00 to $3.50. What was the percent increase? Round to the nearest whole percent.
Monday, April 8, 2013 at 8:44pm

math
what number is greater than 55 but less than 60, is not an odd number, and when you add up the 2 digits, it equals 7?
Monday, April 8, 2013 at 8:10pm

math
ted has 8 autographed baseballs. all together the baseballs are worth $200.00 explain why you do not have enough information to make a bar diagram to find the value of each baseball.
Monday, April 8, 2013 at 8:04pm

math
how to find volume of a triangle
Monday, April 8, 2013 at 7:59pm

math
many of the health fads were actually healthful. what does the word ''healthful'' mean? a- not healthy b- full of health c- cause to be healthy d- a state of health
Monday, April 8, 2013 at 7:51pm

7th grade math/ geometry
how to name an angle in four ways?
Monday, April 8, 2013 at 7:26pm

Math
A rectangular parcel of land has an area of 2,000 ft2. A diagonal between opposite corners is measured to be 10 ft longer than one side of the parcel. What are the dimensions of the land, correct to the nearest foot?
Monday, April 8, 2013 at 7:22pm

Math
The tempreture was negative two degrees Celsius before it dropped 10 degrees. What was the tempreture after the drop?
Monday, April 8, 2013 at 7:07pm

Math
2 divide 69.28 plz give work too!
Monday, April 8, 2013 at 6:46pm

math
What is 88% of $33?
Monday, April 8, 2013 at 6:37pm

math check answer
1. Which of the following is an example of a dependent event? flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream **choosing a cookie at random, eating it, and then choosing another at random 2. Which of the following is an example ...
Monday, April 8, 2013 at 6:27pm

Math
Cheryl counted all of her quarters and announced to her family that she had 32/4 dollars. How many dollars were her quarters really worth? A.32 dollars B.1 dollar 70 cents C.8 dollars D.128 dollars C
Monday, April 8, 2013 at 6:10pm

math HELP
A barrel contains 15 liters of water. After a boulder is dropped into the water, the reading on the barrel is 22 liters. What is the volume of the boulder?
Monday, April 8, 2013 at 6:00pm

math
Which one is need to happen in order for a shadow to occur?
Monday, April 8, 2013 at 5:50pm

Math
Please explain how to solve this problem. 7x-6/3 + 4(8+2x)
Monday, April 8, 2013 at 5:50pm

Math
You earned a $25 gift card by working in Apangea and have purchased four items. Please list these items in the table below along with their cost. Then calculate the cost of each item as a fraction a decimal and as a percentage. 1.Pack of pencils Amount $2.00 Fraction 2/25 ...
Monday, April 8, 2013 at 5:49pm

science/math
A barrel contains 15 liters of water. After a boulder is dropped into the water, the reading on the barrel is 22 liters. What is the volume of the boulder?
Monday, April 8, 2013 at 5:47pm

Math
I think this is geometry: There is a small box with a black frame around it. Inside the box, at the bottom, is an 8. Inside the box, to the right, is a 2. It looks like they are showing Length & Height. On the outside of the box, under the 8, there is a 10. To the right, ...
Monday, April 8, 2013 at 5:46pm

Math
A farmer is planting squash plants that need 2 3/8 feet to spread out. He has an area along a fence that is 20 feet long. Round the amount of space the squash plants need to the nearest 1/2 foot. How many squash plants can the farmer grow along the fence?
Monday, April 8, 2013 at 5:37pm

math
A barrel contains 15 liters of water. After a boulder is dropped into the water, the reading on the barrel is 22 liters. What is the volume of the boulder?
Monday, April 8, 2013 at 5:36pm

math beyond this
Is there a way to make this look nicer? x^2+4x (208/x^2)
Monday, April 8, 2013 at 5:29pm

math
an oak tree grows 500 meters north of the bottom of a rectangular park. The oak tree takes up a space of a circular area with a radius of 2.5 meters .The center of the tree is 24 meters from the left side of the park .The park is 200 meters wide and has a length of 1300 meters...
Monday, April 8, 2013 at 5:17pm

math
computer can do 1000 operations in 4.25 X 10 to the 6th power, how many operations can this computer do in an hour?
Monday, April 8, 2013 at 5:10pm

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