Solve the system by substitution

x=4/5y

y=2x + 3

Sean mows lawns in the summer. He charges the same fixed amount for each lawn that he mows. As of today, he has earned $36 after mowing 3 lawns. a.

John has 4 dozen cans of soda that are 16 oz each . How many 12 oz cups will he need to hold all of the soda

In a factory that manufactures tires, a machine responsible for molding the tire has a failure rate of 0.2%.

A company packs boxes at a constant rate of 3/4 of a box every of a box every 1/2 minute. What is the number of boxes per A company packs boxes at a constant rate of minute the company packs?

Solve and explain your "Math Thinking" 12-7

Solve each problem. Determine which choice (or choices) best represent the equation: 10 is 5 times as many as 2 (A) 5 + 5 = 10 B. 5 * 5 = 10 C. 5 x 2 = 10 D. 10 = 2 x 5

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