A weightlifter uses 45 pound plates and 10 pound plates to lift 260 pounds. let x represent the number of 45 pounf weights and y represents the number of 10 pound weights.

part 1 Rights an equation is standard form that represents the situation.

part 2. if the weightlifter uses eight 10 pound weights, how many 45 pound weights did he use?

Question

Mathematics

Munoz

24 May, 05:03

A weightlifter uses 45 pound plates and 10 pound plates to lift 260 pounds. let x represent the number of 45 pounf weights and y represents the number of 10 pound weights.

part 1 Rights an equation is standard form that represents the situation.

part 2. if the weightlifter uses eight 10 pound weights, how many 45 pound weights did he use?

+2

Answers (1)

Know the Answer?

Christopher Ford · Answer 1

Part 1.

The total weight is given by ...

45x + 10y = 260

Part 2.

The solution to the equation when y=8 is

45x + 10*8 = 260

45x = 180

x = 180/45 = 4

The weightlifter used 4 45-pound weights.