X+y=7

x-y=3

2x-3y=15

3x-2y=10

If 5/12 of the contents of a box weigh 20 kg, what is the weight of all the contents? What would 1/8 of the contents weigh?

Maggie buys 4 shirts that are the same but in different colors. The total cost for all 4 shirts before sale tax is 85.80 if all 4 shirts the same price how much does 1 cost

In a recent poll, 200 people were asked if they liked dogs, and 36% said they did. Find the margin of error of this poll, at the 95% confidence level.

An animal shelter spends $4.00 per day to care for each cat and $4.50 per day to care for each dog. Gabriella noticed that the shelter spent $147.00 caring for cats and dogs on Wednesday.

If m (x) = x+5/x-1 and n (x) = x-3, which function has the same domain as (m*n) (x) ?

Lenny makes $55,000 and is getting annual raises of $2,500. Karl makes $62,000, with annual raises of 2,000. How many years, y, will it take for Lenny and Karl to make the same salary?

What does x mean in math

A used car is priced at $2,695. If you borrow the money for the car, your payments will be $122 a month for 30 months. How much will you save by paying cash?

Use the given graph of f to find a number δ such that if |x - 1| < δ then |f (x) - 1| < 0.2

A random number generator is used to create a list of 150 single-digit numbers. Of those 150 numbers, 72 are odd and 78 are even. The number 9 was generated 15 times.