1,022 Answered Questions for the topic Math Question

Math Question

04/09/15

LUMP SUM PROBLEM

So you want to be a “millionaire” and you have 45 years to achieve it. What lump sum could you invest now to reach your goal, assuming that (on average) you receive an annual rate of return of 9%... more
Math Question

04/09/15

Expected value

Imagine going to an electronics conference that is selling raffle tickets for $1 at the door. The prizes to be given away are: a $225 large flat screen television; two $75 MP3 players; and three... more
Math Question Math Math Help Math Answers

04/06/15

find how many quarters and dimes there

a parking meter contains quarters and dimes worth $9.50. there are 62 coins in all. find how many of each there are.   how many quarters there are _ quarters   how many dimes there are _ dimes

04/06/15

solve by the elimination method

3r-5s=14 5r+3s=46   determine the solution of the system. select the correct choice below and, if necessary, fill in the answer box to complete your choice.   a) _ (type an ordered pair) b)... more

04/06/15

solve by the substitution method

r-9s=0 9r-3s=390   what is the solution of the system. _ (type an ordered pair)

04/06/15

solve the following system of equations using the substitution method

x=y+7 2x+y=5   the solution is. _ (type an ordered pair)
Math Question Math Maths Math Help

04/06/15

solve by elimination method

8x-y=67 x+7y=44   determine the solution of the system. select the correct choice below and, if necessary, fill in the answer box to complete your choice.   a) _ (type ordered pair) b) there... more
Math Question

04/03/15

Decreasing Margin of error

Suppose you want to decrease your margin of error by a factor of 6. By what factor, do you need to increase your sample size? In other words, if you want to decrease your margin of error from 42%... more
Math Question

04/01/15

Find two numbers whose sum is 22, and whose difference is 10.

What is the larger number?__ What is the smaller number?__  
Math Question

04/01/15

Solve by the substitution method.

y-3x=16 9y+x=32   What is the solution of the system? ___ (Type  an order pair.)

03/29/15

Simplifying Trig Expression

Simplify csc^2x-1/cot^2x 
Math Question

03/28/15

N^3+N^3=N^3

I can't solve this question.Please help me. I have an example of itN^2+N^2=N^23^2+4^2=5^29+16=2525=25both become equal.And don't use 0Please help me.
Math Question

03/26/15

compact disk that will have 5 songs

How many ways can I arrange the 5 songs on the cd?
Math Question

03/24/15

The 68-95-99.7 Rule

Consider that the National Health Center for Statistics reports that females (age 21) have heights that are normally distributed, approximately centered at a mean of 65 inches (5 feet 5 inches)... more
Math Question

03/23/15

Weighted Means

Suppose your science class grade is weighted according to the following table: Category and Weight Exams50%Homework15%Projects20%Quizzes15%If you currently have a 91% in Exams, a 98% in Homework,... more
Math Question

03/19/15

Binned Frequency Table

The exam results for unit 1 are given below. Complete the frequency table columns for this data (using 10 point bins).. (Round the relative frequencies to the nearest tenth.) 75, 75, 88, 91, 78,... more
Math Question

03/19/15

Should You Believe This Study?

Suppose a sociologist studying obesity in America passes out questionnaires asking each respondent if he or she exercises regularly. Based solely on this information, would you have reason to... more
Math Question

03/18/15

How do you rewrite 50x78? I never learned this and i need to know how to and explain for my homework. Please help me

I am not cheeting i need help
Math Question Math Problem

03/17/15

what is m+m+m

I can't remember it and my mom says I have to figure it out myself.
Math Question Math Math Help

03/16/15

MATH PROBLEM! (HELP)

How many different sandwitche's can you make from 3 types of bread, 2 types of cheese, and 2 types of meat? Assume that only one type of each item is used per sandwich. 
Math Question

03/14/15

it took lisa 2 hours to read the first 100 pages of a book. then she read the last 44 pages in 1 hour. how many pages did she read per minute for the whole book

I'm doing a math packet and i needed help on this question if you  can please help me that would be great thank you so much
Math Question

03/14/15

Varying Value of Deductions

Shaylee falls in the 10% tax bracket, while Joseph falls into the 28% tax bracket. In 2013, they both itemized their deductions and paid out $5500 to charity. Based on their tax bracket, figure how... more
Math Question

03/14/15

Rent or Own?

When considering the pros and cons of renting versus purchasing a home, one of the angles to consider would be to contrast the rent with the actual mortgage payments. For the problem below,... more
Math Question

03/14/15

Tax Credits and Tax Deductions

Emma and Conner are in the 10% tax bracket and itemize their deductions. How much will their tax bill be reduced if they contribute $1300 to charity?

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