Solve by substitution

4x + 7y = 1

y = - 2x-7

A relay team ran a race. Each team member ran #1/4# of the distance. The whole race was #8/9# mile. How far did each team member run?

A group of three friends order a combo meal which includes two slices of pizza and a drink eight drink is priced at $2.50 if the combine total is $31.50 how much is the cost of a slice of pizza

a bag contains 3 blue and 2 green marble. what is the probability of drawing a blue marble followed by a green marble, without replacing the first marble

As an odometer check, a special counter measures the miles a car travels modulo 7. Explain how this counter can be used to determine whether the car has been driven 49,335; 149,335;

Two people paddle a canoe 8 miles upstream in two hours. They then turn around and paddle 8 miles downstream in one hour. If they are paddling at the same rate both upstream and downstream, how fast are they paddling? How fast is the current?

Evaluate the expression for x = 4 1/3 9x + 4 A) 39 B) 40 C) 43 D) 52

Tom rented a truck for one day. There was a base fee of $16.99, and there was an additional charge of 90 cents for each mile driven. Tom had to pay $190.69 when he returned the truck. For how many miles did he drive the truck?

What are the advantages of using an algebraic expression to represent a pattern rule, compared with describing the pattern in words?

What is they ratio of students in 6th grade if there are 20 6th graders and 24 students in 5th grade

Travis runs an average of 25 miles per week give or take six miles. let m be the number of miles travis runs each week