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November 26, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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MATH
SASHA AND FRANCISCO WERE SELLING LEMONADE FOR $.25 PER HALF CUP AND $.50 PER FULL CUP. AT THE END OF THE DAY THEY HAD COLLECTED $15 AND HAD USED 37 CUPS. HOW MANY FULL CUPS AND HOW MANY HALF CUPS DID THEY SELL?
Tuesday, September 30, 2014 at 10:55pm

7th grade math
Can you check this problem? Jean has 5 different colors of markers: red, blue, green, orange, and purple. Two colors are used to make a sign. How many different combinations are possible? List them. Ans: 10 possible combinations red/blue, red/green, red/orange, red/purple, ...
Tuesday, September 30, 2014 at 10:50pm

math 4
yson talked with 150 customers on his shift yesterday. Of those, 20% resulted in a successful upsell of additional purchases. If Tyson makes a $6 commission on top of his regular salary for each successful upsell that he makes, how much commission did he make yesterday? $ 30...
Tuesday, September 30, 2014 at 10:47pm

math 3
A customer sent in a $230 check to pay off an overdue bill but failed to pay the interest that accrued over the 45 days after the posted due date. The original balance owed was $230, and the account accrues interest at $0.42 per day. What amount of money should the customer ...
Tuesday, September 30, 2014 at 10:46pm

2 math
Denise spoke with a total of 80 customers on her shift at work today. Of those customers, 55% resulted in a sale, 15% said they would "come back another time", and 10% were sent to speak with the supervisor on shift. What is the total number of customer sales that ...
Tuesday, September 30, 2014 at 10:45pm

Math
I forgot how to do inequalities with a rational function. The question I have is: ((3x-2)/(x-1))<1
Tuesday, September 30, 2014 at 10:24pm

math
the ratio of the number of people who own a smartphone than a flip phone, how many people own each type of phone?
Tuesday, September 30, 2014 at 10:20pm

Math (LCM)
A music store gives every 20th customer a $5 gift card. every 50th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards? Use prime factorizations.
Tuesday, September 30, 2014 at 10:04pm

math
a man has 35 models. he has 4 times as many airplane models as he does helicopter models. how many airplane models does he have?
Tuesday, September 30, 2014 at 10:01pm

Math .
3(4x - 2) = 2(6x - 3) one solution infinite solutions ** no solution a+5 = 1/5(5a + 25) one solution infinite solutions no solution ** 3(4x - 3) - 7x = 5x - 9 one solution infinite solutions no solution 8+2(8x - 6) (choose all that apply) 2(4x + 7) 9x – 10 16x – 4...
Tuesday, September 30, 2014 at 9:50pm

math
Kevin is a quarterback on the football team. He completed 36 passes during the season. His second-string replacement mark completed 2/9 as many passes as kevin. how many passes did Mark complete?
Tuesday, September 30, 2014 at 9:48pm

math
mary put new tiles on her kitchen floor. the floor measures 6 feet long by 5 feet wide. she used 10 tiles to cover the entire floor. each tile was 3 feet long. write an equation using the variable x to model this situation. what does x represent in the equation?
Tuesday, September 30, 2014 at 9:30pm

math
what are the missing numbers between 21 and 63
Tuesday, September 30, 2014 at 9:15pm

Math
How to plot (0,-2)
Tuesday, September 30, 2014 at 9:13pm

Math
Suppose an experiment involves rolling a fair die 720 times. Find the mean of the number of times a number less than 2 is rolled
Tuesday, September 30, 2014 at 9:11pm

math
1. Finding the Counterfeit Coin. You have 5 coins. You know that one of them is counterfeit and weighs less than the others. Suppose also that you have a balance scale. Is there a strategy for finding the counterfeit coin using the balance scale only twice? If yes, what is the...
Tuesday, September 30, 2014 at 8:46pm

Math
A woman has a total of $10,000 to invest. She invests part of the money in an account that pays 6% per year and the rest in an account that pays 9% per year. If the interest earned in the first year is $750, how much did she invest in each account?
Tuesday, September 30, 2014 at 8:36pm

Math
Travis has a total of $6,000 invested in two accounts. The total amount of interest he earns from the accounts in the first year is $420. If one account pays 6% per year and the other pays 9% per year, how much did he invest in each account?
Tuesday, September 30, 2014 at 8:36pm

Math
A woman owns a small, cash-only business in a state that requires her to charge 6% sales tax on each item she sells. At the beginning of the day, she has $290 in the cash register. At the end of the day, she has $1200 in the register. How much money should she send to the ...
Tuesday, September 30, 2014 at 8:35pm

Math
Every item in the Just a Dollar store is priced at $1.00. When Mary Jo opens the store, there is $127.00 in the cash register. When she counts the money in the cash register at the end of the day, the total is $1,055.80. If the sales tax rate is 8%, how many items were sold ...
Tuesday, September 30, 2014 at 8:35pm

Math
The third angle in an isosceles triangle is 116° more than twice as large as each of the two base angles. Find the measure of each angle.
Tuesday, September 30, 2014 at 8:34pm

7th grade math
find the sum 7/20 + (-4.8) + (-4/5) +4.9 im cluless
Tuesday, September 30, 2014 at 8:08pm

math
A room measures 14 feet by 20. feet. How many tiles would it take to cover the deck if the square tiles measure 8.0 inches to the side?
Tuesday, September 30, 2014 at 7:56pm

8th grade math
At 2pm the temperature is 22 degrees, by 4am it is negative 7 degrees. We think the answer in the change of temperature is 29 degrees am I right?
Tuesday, September 30, 2014 at 7:44pm

Math
4(2x + 3) = 2(3x - 4) one solution *my answer* infinite solutions no solution
Tuesday, September 30, 2014 at 7:08pm

Math Help
Which pair(s) of functions are inverses? There may be more than one correct answer. a.) f(x) = x - 12, g(x) = x + 12 b.) f(x) = 3x, g(x) = 1/3x c.) f(x) = 4x, g(x) = -4x d.) f(x) = 2x + 1, g(x) = 2x - 1 My answer: B & C
Tuesday, September 30, 2014 at 7:04pm

Math
1.) What is the inverse of the relation (3, -1), (2. 5), (-4, -4)? 2.) What is the inverse of the relation (1, -3), (3, 5), (6, -2)?
Tuesday, September 30, 2014 at 7:03pm

Math
What is 145 over 16 in simplest form? 29/2 * 5/8 = 145/16 = ?? PLEASE HELP MMEEEE DX
Tuesday, September 30, 2014 at 7:02pm

Math Pre-Calc/Trig
If 11 square meters of tile are available to make a rectangle whose width must be 6 meters less than its length, what would be the dimensions of the rectangle?
Tuesday, September 30, 2014 at 7:01pm

8th grade Math
At 2pm the temperature is 22 degrees, by 4am it is negative 7 degrees. We think the answer in the change of temperature is 22 degrees am I right?
Tuesday, September 30, 2014 at 6:51pm

Math
This is a bonus question. If the modes of a problem are13 and15 and the mean and the median are 15 how do you come up with the other numbers
Tuesday, September 30, 2014 at 6:17pm

math
how much fuel will all of your familys vehicles hold if they are completely full Explain
Tuesday, September 30, 2014 at 6:04pm

Math z-scores
find the z-scores for which 92% of the distribution's area lies between -z and z
Tuesday, September 30, 2014 at 6:01pm

Math (What Do I Do)
Choose the best graph for the given situation. Copy the graph and label the axes with the variables give in parenthesis (the first variable goes on the y axis and the second variable on the x axis). 1.Karina walked from home to the library, did some homework, then walked back...
Tuesday, September 30, 2014 at 5:59pm

Math
4(2x - 3) - 4x (answer all that apply) 4x – 12 *my answer* 3x – 4 *my answer* 3(2x – 6) 4(x – 5)
Tuesday, September 30, 2014 at 5:45pm

4th grade math
Danielle received $32 for her birthday. Three years ago, she received 1/4 as much. How much did Danielle receive three years ago?
Tuesday, September 30, 2014 at 5:28pm

math
(3r-5)(x+3)
Tuesday, September 30, 2014 at 5:22pm

math
Most Americans throw away about 1365 pounds of trash each year. Is it reasonable to estimate that Americans throw away over 10000 pounds of trash in 5 years? Explain.
Tuesday, September 30, 2014 at 4:47pm

Math Questions
1.) What is the inverse of the relation (3, -1), (2. 5), (-4, -4)? 2.) What is the inverse of the relation (1, -3), (3, 5), (6, -2)?
Tuesday, September 30, 2014 at 4:42pm

math models
The Sears Tower in Chicago is 1454 feet high. Sketch and find the angle of elevation from a point 750 feet from the base to the top of the tower. Relate your answer to the nearest tenth. a. 62.7º b. 27.3º c. 31.1º d. 58.9º
Tuesday, September 30, 2014 at 4:37pm

4-- math questions
1. Simplify this expression: 6d + 11 – 3d + 4. 3d 17d + 7d 3d + 15 9d + 15 2. Name the coefficients in this expression: 7a + 3b + 9. 7 and 3 7, 3, and 9 7a and 3b 7a, 3b, and 9 3. Name the like terms in this expression: 4c + 12 + 3c + 2b. 4c, 3c, and 2b 4c and 2b 4c and ...
Tuesday, September 30, 2014 at 4:20pm

Math
2. What is the selling price of a $12,543 boat if a $758 discount is given? A. $11,758 B. $12,785 C. $11,785 D. $12,758 I think it is C.
Tuesday, September 30, 2014 at 3:48pm

Math
Subtract the fractions and write your answer in lowest terms. 4/5-3/8 A. 1/40 B. 1 7/4 C. 7/10 D. 17/40
Tuesday, September 30, 2014 at 3:23pm

math...
Add the fractions and write your answer in lowest terms. 2/5+1/9 A. 1/15 B. 23/45 C. 3/14 D.19/45 B? Thanks
Tuesday, September 30, 2014 at 3:17pm

Math
Find the LCD of 3/5 and 1/6. A. 5 B. 6 C. 11 D. 30 I choose D am I right? Thanks
Tuesday, September 30, 2014 at 3:08pm

Math
I wanted to double check that I am correct on the work area and answers please. 1.Given f(x)=x+2 and g(x)= 3x-4. Find (f+g). Work: (x+2) + (3x-4) Answer: 4x-2 2.Given f(x)=x+2 and g(x)=3x-4. Find (f*g). Work: (x+2)(3x-4) Answer: 3x² +2x-8 3.Given f(x)=x+2 and g(x)=3x-4. ...
Tuesday, September 30, 2014 at 1:50pm

Math
4(2x + 3) = 2(3x - 4) one solution infinite solutions * my answer* no solution 6 - a = 1/3(9a - 18) one solution * my answer* infinite solutions no solution 3(4x - 3) - 7x = 5x - 9 one solution infinite solutions *my answer* no solution 4(2x - 3) - 4x (answer all that apply) ...
Tuesday, September 30, 2014 at 1:50pm

MATH HELP PLEASE
1. What is the product of (5.1 × 10^3) • (3.2 × 10^3)? (1 point) 16.32 × 10^6 1.632 × 10^7 16.32 × 10^9 1.632 × 10^10 2. What is the product of (7.28 × 10^-2) • (9.1 × 10^-2)? (1 point) 6.6248 × 10^-3 66.248 &...
Tuesday, September 30, 2014 at 1:35pm

Math
Determine if the conditional statement is true. If a shape is a square, then it will have four sides. True?
Tuesday, September 30, 2014 at 1:34pm

math
83 3rd graders 115 4th graders 150th graders all the 5th graders will be on one side and all the 4th graders will be on the other side the 3rd graders will be split up so that the two sides will have equal number of student how many 4th graders ?how many 3rd graders will be ...
Tuesday, September 30, 2014 at 12:08pm

Math
1.)which two sq roots are used to estimate 5? a.)1 & 2 b.)2 & 4 ****** c.)4 & 9 d.)9 & 16 2.)which two sq roots are used to estimate 43? a.)25 & 36 b.)36 & 49***** c.)49 & 64 d.)25 & 64 3.)an estimate for the sq root of -66 is? a.)-6 b.)-7 c.)-8***** d.)-9 4.)an estimate for ...
Tuesday, September 30, 2014 at 11:40am

Math Gr.12
h=-4.9t^2+29.4t what is the rocket's maximum height? (think vertex)
Tuesday, September 30, 2014 at 9:39am

College Prep Math 4
The formula is S=2 times the square root of 5 times L. S equals the estimated speed of a car and L equals the length of the skid marks prior to the accident. 100=2(square root of 5x) I have no idea how to solve this
Tuesday, September 30, 2014 at 9:24am

Math Gr 12
A model rocket is shot straight into the air. Its height in meters a "t" seconds is given by h=-4.9^2+29.4t. a) What is the rocket's initial height? c)When does the rocket reach the ground?
Tuesday, September 30, 2014 at 9:02am

math- pre calc/trig
Find the length of each side of a square if the diagonal is 7(square root 2)? How do I solve or set up this problem?
Tuesday, September 30, 2014 at 8:05am

math exponential function
if 450,ooo is invested at 12% compounded semiannually .When will the amount of investment be 477,000?
Tuesday, September 30, 2014 at 4:11am

math
P is the product ,n is the consecutive term of geometric progression, s is tje sum of their reciprocal then(S/R)n is equal a) p b) p2 c) p3 d) pn
Tuesday, September 30, 2014 at 2:47am

Math
Is -2 an even number?
Tuesday, September 30, 2014 at 1:07am

Math
I wanted to double check my work. I am trying to find the domain: 1. f(x)= x+5 Answer: No Domain 2. f(x) = 1 X+5 Work: x+5≠0 X=-5 Answer: (-∞,-5) ᴜ (-5,∞) 3. f(x)= √x+2 Work: x+2 ≥ 0 x ≥ -2 Answer: [-2,∞)
Tuesday, September 30, 2014 at 12:35am

Math
A resultant vector has a magnitude of 25m?s with an angle of 20 degrees counterclockwise of east. draw the resultant on a coordinate plane, Find the x-component. Find the y-component
Tuesday, September 30, 2014 at 12:14am

math
The greatest recorded temperature ranges in the world are around the "cold pole" in Siberia. Temperatures in Verkhoyansk have varied from -94 degrees Fahrenheit to 98 degrees Fahrenheit. What is the difference between the high and low temperatures in Verkhoyansk?
Monday, September 29, 2014 at 11:41pm

Math
is -3.444,-3.4222,-|3.4|,-3 3/7 from least to greatest correct? if not plz esplane
Monday, September 29, 2014 at 10:37pm

Math
36+81=____(____+____)
Monday, September 29, 2014 at 10:21pm

math
Mr snider is tiling a floor .The floor is 16 tiles long and 5 toles wide.How many tiles are in the border section?
Monday, September 29, 2014 at 10:03pm

Math
Posted by NEED HELP on Monday, September 29, 2014 at 9:12pm. Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. -4/-4+4square root of 2 3. 1/1+ square root of 2
Monday, September 29, 2014 at 9:57pm

Math
Factor Completely 8y^5+12y^3+4y
Monday, September 29, 2014 at 9:52pm

Math
Everyday Ms. Twinkle walks around a park near her house. The park is in the shape of rectangle 2 mi long and 1 3/10 mi wide. How far does she walk?
Monday, September 29, 2014 at 9:33pm

math
Please help, my mom and I are having a difference of opinion. The question is crackers come in packages of 24. Cheese slices come in packages of 18. You want one cheese slice for each cracker. What is the least number of crackers and cheese slices you can buy so nothing is ...
Monday, September 29, 2014 at 9:29pm

Math
Given the following prime factors, determine the original number as well as all of its factors. 2*3*5*7 I know that 2*3*5*7 is 210 but I don't know what to do next.
Monday, September 29, 2014 at 9:23pm

Math
Factor Completely 8y^5+12y^3+4y
Monday, September 29, 2014 at 8:56pm

math
Kristen and Christopher were playing a board game. They used a spinner with 4 spaces labeled 1, 2, 3, and 4. Each player was allowed 3 consecutive spins. They could move pieces on a board game only if the total of the 3 spins equaled 5. How many possible combinations could ...
Monday, September 29, 2014 at 8:23pm

math
Forensic specialists can estimate the height of a deceased person from the lengths of the person's bones. These lengths are substituted into mathematical inequalities. For instance, an inequality that relates the height h, in centimeters, of an adult female and the length ...
Monday, September 29, 2014 at 8:11pm

math
6units to the right and 5units up
Monday, September 29, 2014 at 8:05pm

Math
How to add fractions Adding fractions is simple look at the example below. 4 2 - + - = 4+2=6 and you keep the 8 8 denominator the same so the answer is 6 - 8
Monday, September 29, 2014 at 7:51pm

Math
Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x
Monday, September 29, 2014 at 7:50pm

math
Represent 30 degree increase in temperature as an integer. Would that be +30?
Monday, September 29, 2014 at 7:47pm

Math
Explain how to find the greatest common factor of three numbers. Grade 6 GO MATH BOOK
Monday, September 29, 2014 at 7:46pm

7th grade math
Classify properties of operations. 1. (-4-3n) * -8 Ans: distributive 2. (6+4)+8=6+(4+8) Ans: associative 3. (1-7n) * 5 Ans: distributive
Monday, September 29, 2014 at 7:40pm

math
write a ratio in 3 ways, comparing the first quantity to the second. A week has 5 school days and 2 weekends. Second question about 1 in 4 people swims at least 6 times each year.
Monday, September 29, 2014 at 7:37pm

math
how can you simplify a ratio
Monday, September 29, 2014 at 7:30pm

Math
Pat and Kelly went hiking in the mountains. They started at 9,100 ft. They climbed 1,200 ft the first day, descended 900 ft the second day, and climbed 1,000 ft the third day. On the fourth day they descended 800 ft. What was the average altitude at which they hiked?
Monday, September 29, 2014 at 7:08pm

Math
the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
Monday, September 29, 2014 at 6:54pm

Math
One table at a bake sale has 75 oatmeal cookies.Another table has 60 lemon cupcakes. Which table allows for more rectangular arrangements when all the cookies and cupcakes are displayed? Explain.
Monday, September 29, 2014 at 6:53pm

MATH HELP
arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4
Monday, September 29, 2014 at 6:38pm

Math
The coach of a baseball team separates the players into groups for drills. Each group has the same number of players. Is the total number of players on baseball team prime or composite? Explain.
Monday, September 29, 2014 at 6:29pm

math
which is the number that has a tens digit that is 8 more than the units digit. but zero is not one of the digits
Monday, September 29, 2014 at 6:17pm

math
for what values of k in y=3x+k with the curve y=-x^2-3x+6 intersect the line at 2 points
Monday, September 29, 2014 at 5:59pm

math squares
how many squares with sides that are 6 inches long are needed to cover a square with a side length of 30 inches without overlapping
Monday, September 29, 2014 at 5:55pm

Math
What is the volume of a rectangular prism if the base area is 56 inches, height 6 inches?
Monday, September 29, 2014 at 5:40pm

Math (Trig)
Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
Monday, September 29, 2014 at 5:32pm

math
Imelda, susan and clara are driving go carts around a track. Imelda takes 14 min, susan takes 9 min and clara takes 10 min to drive one lap. suppose all three of them start together at a point and drive at their same speeds. after how many minutes would all three meet again?
Monday, September 29, 2014 at 5:28pm

Math
Jeremy bought a plank of wood 2 2/3 yards long. He divided the plank into 3 equal pieces. How long is each of Jeremy's planks?
Monday, September 29, 2014 at 5:22pm

Math
Pat purchases 2.5 pounds of jelly beans at $.89 per pound. How much did Pat pay for his jelly beans in all?
Monday, September 29, 2014 at 5:03pm

Math
Wanda meets her friend every 8 days. She meets her friend Audrey every 6 days. One day she meets both Jackie and Audrey. In how many days will she next meet Jackie and Audrey?
Monday, September 29, 2014 at 4:59pm

Math
the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
Monday, September 29, 2014 at 4:59pm

Math
Jada has 1/4 of a pizza left. She is going to split the leftovers equally with 6 of her friends. What fraction of the whole pizza will each piece be?
Monday, September 29, 2014 at 4:53pm

math problem solving
arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4
Monday, September 29, 2014 at 4:42pm

Math
It took 6.5 gallons of gas to fill the tank of the family car. If the tank is .25 full when they arrived at the gas station, how much gas does the tank hold.
Monday, September 29, 2014 at 4:27pm

Math
Write a two column proof. Given: 7y = 8x - 14; y = 6 Prove: x = 7
Monday, September 29, 2014 at 3:48pm

math
find two numbers the exact answer is between 3*567
Monday, September 29, 2014 at 3:46pm

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