7,189 Answered Questions for the topic Math Help

Math Help

12/07/17

William lives 5/6 miles from school. His walk takes 1/4 hour. What is the average rate of travel in miles per hour
Fractions
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Math Help

12/07/17

Andre is paid 12.5% commission on his sales. If he wants to earn $2500 in commission, what amount of sales must he make?
help me with this problem
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12/07/17

One number is two more than a second number. Three times the first is 7 less than 2 times the second. Find the numbers.
 I need help answering this word problem and how to set it up. 
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Math Help

12/07/17

which operation will undo multiplication? Addition,Subtraction,Division,Multiplication
Need help A.S.A.P
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Math Help Math

12/06/17

12.95=y+3.19 | What is y?
Im confused because there is a equal sign in a weird place
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12/06/17

what is 0.0505 repeating in decimal form?
Please help me, when I try I always get the answer of 0.0505 in decimal form, not 0.0505 repeating.
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Math Help

12/06/17

You leave home at 7:10 am to travel 400 miles at 60 miles an hour.
What time will you arrive at your destination?
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Math Help

12/05/17

what is the circle with a radius of 6 ft
A / C = 16pi ft B / C = 12pi ft C / C = 15pi ft  D / C = 6pi ft  E / C = 8pi ft
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12/05/17

Homework help for discrete
Suppose f: integer(z) to integer(z) is a function with the property that f(a+b) = f(a) + f(b) for every two integers a and b. Prove that if f(c) is even for some odd integer c then f(x) is even for... more
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Math Help Math

12/05/17

Answer not submitted There are 550 students at Green County Middle School and 220 of them ride the bus to school. What percent of the students ride the bus
Tell me the awnser 
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Math Help

12/05/17

How long will it take your money to quadruple if you earned 3%, coumpounded continuously?
None...  
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Math Help

12/05/17

10 pieces over a 5 week of piano lesson. How many weeks for 12 pieces
Lily learned to play a total of 10 pieces over the course of 5 weeks of piano lesssons. In all, how many weeks of piano lessons will Lily need before she is able to play a total of 12 pieces.
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Math Help

12/05/17

if tests are 80% of the grade and homework is 20% of the grade and the test average is 87% and the homework average is 100%, what is the final grade?
the 87% is on 4 tests and there are 2 tests left.  What does the student need to get on the 2 tests to average out a 90?
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12/05/17

Math homework help
The distribution of the weights of 100 students has a mean of 168lbs with a standard deviation of 16lbs. Predict the number of students who have weights between 135 and 175 pounds.
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Math Help

12/05/17

MATHEMATICS
the number of trees in a rain forest decreases each month by 0.5%. If the forest has approximately 2.34 •10^9 trees, how many trees will be left after 20 years?
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Math Help Math

12/05/17

Cost of 0.35 m2 if 1m2 is $25.00. How do I work this out
Hi,   I'm trying to work this out: Cost of 0.35 m2 if 1m2 is $25.00. I need to know how you worked it out. when i try to input this into a calculator it gives me $8.75 per m2, which isn't... more
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12/04/17

For a normally distributed set of data, the percentage of data less than a z-score of 0.83 is
what is the percentage?
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12/04/17

For a normally distributed set of data, find the area under the normal curve for the region between z-scores of 0.74 and 1.62
What is the area?
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Math Help Statistics

12/04/17

For a normally distributed set of data, find the area under the normal curve between the mean and a piece of data with a z-score of -1.24
What is the area under the normal curve between the mean and a piece of data with a z-score of -1.24?
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Math Help

12/04/17

Tickets to a school dance cost $5. Ninety tickets have already been sold. How many more tickets x must be sold to earn at least $700?
Write your answer as an inequality
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12/04/17

Solving Trig Equations
Solve sin(3Θ)=-1/2 for all solutions of Θ in the interval [0,2Π).     Enter answers in exact radians and in ascending order. Simplify fractions.
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12/04/17

Solving Trig Equations
Solve sin(2Θ)=-1/2 for all solutions of Θ in the interval [0,2Π).    Enter exact radians in a list separated by commas. Simplify fractions. The answers are_____________. 
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Math Help

12/04/17

i have a problem with that, ca you help me ?
Five bottles of water and 3 bagels cost $13.53. At the same prices, 4 bottles of water and 6 bagels cost $13.92. Find the price per bottle of water and the price per bagel.
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12/04/17

How many houses did the two children count during Halloween?
While trick or treating in Clayton, NY (population 1,978), some friends play a counting game-they counted all the houses they visited while trick or treating (they all counted the same houses).... more
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12/04/17

A new study abroad program sent 55 students (read more in description)
A new study abroad program sent 55 students to three popular destinations this semester. There were 7 more students sent to Indonesia than the Philippines. There 4 more than twice as many students... more
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