Saturday
April 25, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
How do you find the height of a rectangular prism if you have the length, width, and holds 300 cubic inches of water?
Thursday, March 12, 2015 at 5:47pm

Math
It took Michael 15 minutes to walk from his house to his friends house would you measure the distance he walked in linear or square units ?
Thursday, March 12, 2015 at 5:41pm

Math
Jeremy collected nickels for 1 week. He is making stacks of his nickels to determine how many he has. The thickness of 1 nickel is 1/16 inches. -How tall is a stack of 16 nickels? -What is the combined height of 3 nickels, 2 nickels, and 1 nickel?
Thursday, March 12, 2015 at 5:29pm

math
. A ship leaves an island (5°N, 45° E) and sails due east for 120 hours to another island. Average speed of the ship is 27 knots. (a) Calculate the distance between the two islands (i) In nautical miles (ii) In kilometers (b) Calculate the speed of the ship in ...
Thursday, March 12, 2015 at 5:27pm

math
What is the measure, in degrees, of the acute angle formed by the hour hand and the minute hand of a 12-hour clock at 6:48?
Thursday, March 12, 2015 at 5:13pm

Math
Jan has 1/3 hour to warm up for her dance recital. She must complete each of 6 different stretches. How long, in hours, does she spend on each type of stretch if she spends an equal amount of time on each type of stretch? I think it would be 1/3 divided by 6 for an answer of 1...
Thursday, March 12, 2015 at 5:07pm

Math
Nikki ate 1/4 of a pizza. The pizza had more than 4 slices. Which fraction describes how much of the pizza Nikki could have eaten ? A. 3/10 B. 2/8 C. 2/6 D. 4/12
Thursday, March 12, 2015 at 5:05pm

math
The outside diameter of a pipe is 5 and 7/32 inches. The walls of the pipe are 5/32 inches thick. find the inside diameter
Thursday, March 12, 2015 at 4:01pm

math REALLY NEED SOME HELP
question 10 on unit math review find the are....its hard!
Thursday, March 12, 2015 at 4:00pm

math
You have 160 boxes of cookies. In each case you can pack 8 boxes of cookies. How many cases would be filled from these boxes of cookies? I'm not sure if i do 160*8 or what i believe its 20 instead of 1280
Thursday, March 12, 2015 at 3:27pm

math
How much interest is earned on $470 at 4% for seven years?
Thursday, March 12, 2015 at 3:18pm

math
The temperature dropped from 6 Celsius to -5 Celsius. How many degrees did the temperature drop?
Thursday, March 12, 2015 at 3:12pm

periodic functions(math)
A vessel is crossing a channel. The depth of the water(measured in metres) varies with time and is represented by the following equation: d(t)=2.5sin(0.523t)+2.9 a. create a graph showing the depth of the water over 24 hours. b. what is the period of this function and what ...
Thursday, March 12, 2015 at 2:28pm

Math
At the local grocery store, 6 bananas and 3 oranges cost $10. Also, 3 bananas and 5 oranges cost $12. What is the combined cost of one banana and one orange at the local grocery store? Round to the nearest cent.
Thursday, March 12, 2015 at 2:26pm

Math
Find the Due date and maturity value for a $28,400 loan made to Henry Koolio on March 12 for 6 months at 9% interest. a. A total of $29,678 must be repaid on September 12. b. total of $29,678 must be repaid on October 12. c. A total of $1,278 must be repaid on September 12. d...
Thursday, March 12, 2015 at 1:48pm

Math
The Romascos hope to have $2,000 in 3 years for a down payment on a new pool. They invest $1,000 in an account that pays 8% interest at the end of each year. Will they have enough money at the end of 3 years to meet their goal of a down payment? What is the difference between ...
Thursday, March 12, 2015 at 12:58pm

math
Julie's birthday is May 1. She wants to buy a new camera that costs $70. She decides to save 1 cent on Jan. 1, 2 cents on Jan. 2. 3 cents on Jan. 3 and so on. Will she have enough to buy the camera on her birthday?
Thursday, March 12, 2015 at 12:53pm

math
if there is 3 crusts 3 cheeses and 7 toppings how many different combinations of 1 crust 3 different toppings and 1 cheese does the store offer
Thursday, March 12, 2015 at 12:51pm

math
The Ferris wheel at the county fair is 30 feet tall. If a person rides the Ferris wheel around 4 times, how far has he traveled? 60 ft 120 ft 90.8 ft 376.8 ft please answer as soon as possible
Thursday, March 12, 2015 at 11:43am

Math
My 10th grade teacher gave us geometry homework and this problem has me stumped for sure. This rhombus has three interior angles: (5x-2)°, (8y+2)°, and (3x+22)° . We are supposed to find the value of x and y. I tried to use an equation by assigning the fourth angle...
Thursday, March 12, 2015 at 11:35am

Math
A bag contains 1 red, 7 black and two yellow marbles. What is the probability of selecting 1 yellow marble, not replacing it then selecting another yellow marble? How do you solve this?
Thursday, March 12, 2015 at 8:31am

math
Consider a cantilever beam of length l loaded by force P at the free end. If the deflection is given by y(x)=(P/6EI)(x³-3/x²) m Find the deflection and slope of the deflection at the free end of x=l
Thursday, March 12, 2015 at 6:06am

math (answer check)
The coordinates of two vertices of triangle DEF are D(-5,5) and E(9,8). Determine two possible coordinates for for F that would make DEF a right triangle ? ans: slope DE = 8-5 / 9 - (-3) = 3/12 I don't know this part :how to Determine two possible coordinates for for F ...
Thursday, March 12, 2015 at 12:24am

Math
Alan scored a total of 14 points for answering all the 15 questions on a math quiz. For every correctly answered question, Alan got 2 points. For every wrong answer, he lost 2 points. How many questions did he answer correctly?
Wednesday, March 11, 2015 at 11:06pm

Math
The Gilberts are designing a rectangular patio for their backyard. The patio has an area of 432 square feet. The width of the patio is 3/4 its length . What is the length of the patio ?
Wednesday, March 11, 2015 at 9:29pm

Math
Rachel wants to carpet the rectangular floor of his basement . The Basement has an area of 864 square feet . The width of the basement is 2/3 its length. What is the length of Rachel's basement.
Wednesday, March 11, 2015 at 9:28pm

Math
The Gilberts are designing a rectangular patio for their backyard. The patio has an area of 432 square feet. The width of the patio is 3/4 its length . What is the length of the patio ?
Wednesday, March 11, 2015 at 9:18pm

math
Rachel wants to carpet the rectangular floor of his basement . The Basement has an area of 864 square feet . The width of the basement is 2/3 its length. What is the length of Rachel's basement.
Wednesday, March 11, 2015 at 9:15pm

5th grade Math
4 x blank is greater than 12 but less than 16. Answers can be in mixed fractions and/or improper fraction. Can someone please explain how to do this?
Wednesday, March 11, 2015 at 8:56pm

Math 5th grade
John brings fruit punch to a school party. He brings 6 gallons of fruit punch but the students only drink 3/4 of it. How much did they drink?
Wednesday, March 11, 2015 at 8:48pm

Math - 7th grade
Can you check following? 1. The football association wants to increase the number of students who attend the football games for the upcoming season. In order to accomplish this, the association is surveying students to gain more information about student interest in sports. ...
Wednesday, March 11, 2015 at 7:56pm

Math
Four of the angles of a hexagon measure 53°, 126°, 89°, and 117°. What is the sum of the measures of the other two angles?
Wednesday, March 11, 2015 at 7:48pm

math
12/35 stamps are from Asia. Of these Asian stamps 5/16 are from Thailand. What fraction of the stamp collection are from Thailand? I want to think I need to divide but I'm not sure it makes sense. 12/35 divided by 5/16= 12/35 times 16/5 = my answer of 192/175. Is this ...
Wednesday, March 11, 2015 at 7:18pm

Math
Jeanette is painting a rectangular wall that is 10 feet long and 8 feet tall there is a window that is 5 feet wide and 3 feet tall on the wall what is the area of the wall that Jeanette will paint
Wednesday, March 11, 2015 at 7:07pm

Math
Rob has a combined flower and vegetable garden that is 9 m long and 11 m wide the flower garden is in the center and is a square with sides of 3 m how many square meters of the garden is used for vegetables
Wednesday, March 11, 2015 at 7:05pm

Math
The inflation rate in the united states in 2014 was about 1.3%. If prices go up by 1.3% per year, how long will it take for them to double? assume that prices are increasing continuously.
Wednesday, March 11, 2015 at 7:03pm

Math
2/9 + 2/3= Please show the work
Wednesday, March 11, 2015 at 6:49pm

math,
Exponential distribution was used to model the lengths of CD-ROM drives in a two drive system. The two CD-ROM drives operate independently, and at least one drive must be operating for the sytem to eperate successfully. Both drives have a mean length of life of 25,000 hours. A...
Wednesday, March 11, 2015 at 6:35pm

Math
A car travels for 10 minutes. it's velocity is given by v=960t-5t, where t is in minutes and v is in ft/min. Find the maximum speed in ft/min during those minutes. Please help I have no idea how to solve this problem.
Wednesday, March 11, 2015 at 5:55pm

math
One interior angle of a triangle has a measure that is equal to the sum of the measures of the other two angles of the triangle. What is the measure of the smallest exterior angle of the triangle in degrees?
Wednesday, March 11, 2015 at 5:41pm

math
When the measures of the angles of a triangle are placed in order, the difference between the middle angle and smallest angle is equal to the difference between the middle angle and largest angle. If one of the angles of the triangle has measure 23 degrees, then what is the ...
Wednesday, March 11, 2015 at 5:39pm

math
The ratio of measures of two complementary angles is 4 to 5. The smallest measure is increased by 10%. By what percent must the larger measure be decreased so that the two angles remain complementary?
Wednesday, March 11, 2015 at 5:01pm

math
logan isn't 2 years older than Lindsey. Five years ago the sum of their ages was 30. Find Lindsey current age. X-5+2x-5=30. -1 + 0= 30. I don't think this right I tried I can't get the right answer. According to the common core the answer is supposed to be 19. ...
Wednesday, March 11, 2015 at 4:58pm

math
An aeroplane leaves a runway and climbs at an angle of 15 degrees. After flying 800 meters, how high is it above the runway?
Wednesday, March 11, 2015 at 4:28pm

Math
SAME THING AS FIRST ONE Mr Russo has 2856 raffle tickets that he will distribute evenly to some of his neighbors. he wants to give the tickets to at least 3 neighbors but no more than 10 neighbors. to how many neighbors can he give raffle tickets so there are none left over? ...
Wednesday, March 11, 2015 at 4:07pm

Math
DIVISIBILITY Dr davis wants to divide 8487 tongue depressors evenly among some containers. she has 10 containers but does not need to use them all. how many containers could she use so there are no tongue depressors left over?
Wednesday, March 11, 2015 at 3:59pm

math
a deposit of 4000 at 6.5% for 270 days show amount of interest earned answer 2870
Wednesday, March 11, 2015 at 2:17pm

Math
1. The radius of a circular disc is 5.8 inches. Find the circumference. Use pi = 3.14 18.212 in 36.424 in *** 42.34 in 54.63 in 2. Name the geometric solid shape suggested by a frozen juice can. Sphere Rectangular prism Pyramid Cylinder ***
Wednesday, March 11, 2015 at 1:57pm

Math
Find the are of a parallelogram with base b and height h. b =82 cm h = 16.6 1,361.2 cm^2*** 6,724 cm^2 137.78 cm^2 98.6 cm^2
Wednesday, March 11, 2015 at 1:52pm

MATH miss.sue
okay 4 friends had 19 Pieces of candy and how many pieces of candy will each friend get? HELP PLZ
Wednesday, March 11, 2015 at 1:52pm

Math
Lionel's front yard is in the shape of a square and has an area of 225 square meters. What is the length in meters of one side of Lionel's front yard? 112.5 56.25 25 15 ***
Wednesday, March 11, 2015 at 1:42pm

Math
Find the volume of a triangular prism with the following dimensions. Round to the nearest whole number. Triangle Base:- 7ft Triangle height:- 4ft Prism height:- 8.5ft 20 ft^3 65 ft^3 119 ft^3 *** 238 ft^3
Wednesday, March 11, 2015 at 1:37pm

math
How do I find the area of a triangular prism, with a square and a triangle, in the shape.
Wednesday, March 11, 2015 at 1:36pm

6th Grade Geometry
Hello, I'm having trouble doing this math geometry someone help me please? Thanks: Calculate the area of the trapezoid which is not drawn to scale. It is not a regular trapezoid! It looks like a rectangle and when you get to the top cut the rectangle and make the part you ...
Wednesday, March 11, 2015 at 10:07am

language arts
WEDNESDAY March 11, 2015 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...
Wednesday, March 11, 2015 at 9:45am

math
what is the length of rectangle with an area of 48 yd 2 and a width of 3 yd 8 16 18 21 i think its c but any one can answer
Wednesday, March 11, 2015 at 9:38am

math
a tray with a square base is to be made from a square piece of cardboard by cutting 5 inch squares from each corner and folding up the sides. If the box is to hold a volume 520 cubic inches, find the length of the piece of cardboard that is needed.
Wednesday, March 11, 2015 at 8:16am

Math Problems
Hi! Someone was helping me with these yesterday but I really didn't get anywhere because I was still confused. So if someone else could help me, that would be great! Thanks! Directions: Write out the partial fraction decomposition of the following rational expression. 1.) ...
Wednesday, March 11, 2015 at 7:58am

math
what is the fraction of 1 fourth?
Wednesday, March 11, 2015 at 2:17am

math
True or false? If f is continuous at x = c, then f is differentiable at x = c.
Wednesday, March 11, 2015 at 1:37am

math
Which of the following is the best linear approximation for f(x)equals sin(x) near x equals =π seconds? y=-x+pie-1 y=-1 y=-x-pie y=-x+pie
Wednesday, March 11, 2015 at 1:36am

MATH
What is the slope of a line at a 45* angle? why?
Wednesday, March 11, 2015 at 12:06am

math
w w esquire
Wednesday, March 11, 2015 at 12:03am

math
The Blue Ridge Trail starts at Park Headquarters in Big Bear Park and goes up the mountain. The Green Creek Trail starts at Park Headquarters and goes down the mountain. The table gives elevations of various points of interest in relation to Park Headquarters. How many points ...
Wednesday, March 11, 2015 at 12:00am

Math
A surgical technique is performed on 7 patients. There is a 70% chance of success. Find the probability that the surgery is successful for at least 5 patients and what is the expected number of successes out of 20 surgeries. My attempt was: P(xmore than or equal to 5)= P(x=5...
Tuesday, March 10, 2015 at 11:31pm

math
write 1.5 billion as a standard numeral
Tuesday, March 10, 2015 at 11:07pm

math
Jose wants to find how many gallons of water he needs to fill his cube-shaped aquarium. One side of his aquarium is 4 feet long. a)Write and solve an expression to find the volume of Jose's aquarium. b)One cubic foot is equal to 7.48 gallons of water. How many gallons of ...
Tuesday, March 10, 2015 at 10:58pm

math
In 2000, about 51% of the 280,000,000 US citizens were women. Their median age was 36.6. About how many of these women were younger than age 36.6?
Tuesday, March 10, 2015 at 10:56pm

math
One is 2% of what number?
Tuesday, March 10, 2015 at 10:54pm

math
Robert is replacing sod in two square-shaped areas of his backyard. One side of the first area is 7.5 feet. One side of the other area is 5.7 feet. The sod costs 'y' dollars per square foot. A)Write an expression to show how much Robert will spend on sod. B)If the sod ...
Tuesday, March 10, 2015 at 10:54pm

Math
what is 30% of 90? How do I solve with out calculator?
Tuesday, March 10, 2015 at 10:52pm

math
A 13 feet ladder is leaning against a house. The distance from the bottom of the ladder to the house is 7 feet less than the distance from the top of the ladder to the ground. Find the distance between the bottom of the ladder and the house.
Tuesday, March 10, 2015 at 10:39pm

Math
What is the answer to ( what is the combined height of 3 nickels, 2 nickels, and 1 nickel?
Tuesday, March 10, 2015 at 9:33pm

math
rosario is arranging her doll collection on 5 shelves. the top shelf has 2 dolls on ti, and each shelf has 3 more dolls than the one above it. how many dolls does rosario have in all?
Tuesday, March 10, 2015 at 9:11pm

math
If you have 100 numbers (1 - 100, including 1 and 100) and you choose 2 of them then do the formula x + y + xy (x being the first number and y being the second) and you replace the 2 numbers chosen with that new number, what are the last possible values for the last number? ...
Tuesday, March 10, 2015 at 8:53pm

math
of 50 students surveyed, 22 have a skateboard, and 18 have roller shoes. of those, 6 students have both. how many students have neither a skateboard nor roller shoes? i don't know how to solve this one
Tuesday, March 10, 2015 at 8:17pm

math
in 2010, 25 parents participated in the band booster organization at king middle school. participation increased to 40 parents in 2011 and 55 parents in 2012. if the trend continues, about how many parents can be expected to participate in 2013? i think it is 70 parents in 2013
Tuesday, March 10, 2015 at 8:17pm

Math
Sam needs to cut a piece of sheet metal into 8 pieces. All the cuts are made in the same direction. It takes him 5 min. to make each cut. How many cuts will Sam make?
Tuesday, March 10, 2015 at 8:08pm

math
in 2010, 25 parents participated in the band booster organization at king middle school. participation increased to 40 parents in 2011 and 55 parents in 2012. if the trend continues, about how many parents can be expected to participate in 2013? i think it is 70 parents in 2013
Tuesday, March 10, 2015 at 7:59pm

Math
Use the figure to answer the following questions. figure for questions 1–3 1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what ...
Tuesday, March 10, 2015 at 7:55pm

Math
of 50 students surveyed, 22 have a skateboard, and 18 have roller shoes. of those, 6 students have both. how many students have neither a skateboard nor roller shoes?
Tuesday, March 10, 2015 at 7:52pm

math
A rectangular piece of carpet is place on the floor of a rectangular room leaving a margin of 1 m around it. If the room measures 8 m by 6 m find the area of the room not covered by the carpet.
Tuesday, March 10, 2015 at 7:47pm

Math
A bag of balloons contains 2 red balloons, 10 green balloons, 16 yellow balloons, and 7 orange balloons. What is the probability that a randomly selected balloon would be green or orange?
Tuesday, March 10, 2015 at 7:32pm

Math
Part C Matt deposited $311.50 into his account on Nov. 1. After he paid several bills from the account, his account balance was –$5.00. What was the total amount of the bills he paid that resulted in this balance? Explain how you got your answer.
Tuesday, March 10, 2015 at 7:28pm

math
To needs to cut strip of wrapping paper that are each 9 inches wide.If TV has 2 rolls of wrapping paper that are each 15 feet long,how many 9 inch strips can he cut?
Tuesday, March 10, 2015 at 7:25pm

Math
Q. marx's clothing store is selling a lot of items. On Monday 495 items were sold. On Tuesday 450 items were sold. On Friday 593 items were sold. Marx's misplaced the totals for Wednesday and Thursday, but the average over the five days was 494 items per day. What ...
Tuesday, March 10, 2015 at 6:59pm

Math
Why are shapes that are not closed not a real shape
Tuesday, March 10, 2015 at 6:44pm

Check Answers (Math)
Which of the following has a graph that is wider than the graph of y=3x^2+2? A) y=3x^2+3 B) y=0.5x^2+1 C) y=-4x^2-1 D) y=4x^2+1 Would the answer be B?
Tuesday, March 10, 2015 at 6:07pm

Math
for a school assignment, santiago has to give three possibilities for the dimensions of a retangle that has a perimeter of 28 ft and an area greater than 30 ft. what are two other possibilities other than 10ft of base and 4 ft for height
Tuesday, March 10, 2015 at 6:03pm

Math
Can you drop your email for my math question?Its on Google classroom and it has a picture that does not copy onto jiskha's homework help
Tuesday, March 10, 2015 at 6:02pm

Math
Which of the following has a graph that is wider than the graph of y=3x^2+2? A) y=3x^2+3 B) y=0.5x^2+1 C) y=-4x^2-1 D) y=4x^2+1 If anyone could help that would be amazing. Thank you so much!
Tuesday, March 10, 2015 at 5:50pm

math
Mark has 312 books in his bookcases. He has 11 times as many fiction books as nonfiction books. How many fiction books does Mark have. My answer is Mark have 308 fiction books and 4 nonfiction books.
Tuesday, March 10, 2015 at 5:49pm

math
Nikki's school day last 7 hours, 20 minutes. How many minutes does Nikki's school day last? Explain how you found the answer
Tuesday, March 10, 2015 at 4:59pm

finite math
Suppose that a 4-digit pin number is to be formed with the digits in {0, 1, ,2 ,3 ,4 ,5, 6, 7, 8, 9}. What is the probability that the pin number contains at least 3 odd digits
Tuesday, March 10, 2015 at 4:44pm

math
Sally and Marta had the same number of postcards. After Sally sold 18 pf her cards, Marta had 4 times as many postcards as Sally. How many postcards did each girl have to begin with?
Tuesday, March 10, 2015 at 4:36pm

math
You are paid $5.75/hr at your part-time job delivering pizzas. You usually earn $1.50/pizza as a tip. Your deductions are FICA (7.65%), federal (11.2%) and state (7.1%) If you work 10 hours and deliver 3 pizzas/hr, what is your gross pay including tips ?
Tuesday, March 10, 2015 at 4:25pm

math
Hannah and Francine have $120. Hannah and Peter have $230. Peter has 6 times as much money as francine. How much money does Hannah have?
Tuesday, March 10, 2015 at 4:17pm

Math
Is 1 1/4 + 2/8 = 1 8/32 + 8 /32 = 2 Then 4 1/2 - 2 = 2 1/2 Are these correct
Tuesday, March 10, 2015 at 4:04pm

Math
Is this correct 1/3 + 2/3 + 2/5 + 3/5 + 1/2 = Is the answer 1/3 + 2/3 = 1 2/5 + 3/5 = 1 + 1/2 = 2 1/2
Tuesday, March 10, 2015 at 3:50pm

finite math
After rolling a pair of fair, six-sided dice, what is the probability that the sum of the outcomes is at least 4 but less than 12? (Round your answer to the third decimal place)
Tuesday, March 10, 2015 at 3:45pm

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