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

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Mathematics

14 November, 02:12

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?

+4

Answers (1)

Know the Answer?

Willow Gregory · 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.