Question

Mr. Royer is looking to buy a new TI 84 plus. He already has $36 saved up and addsto that $5 every week instead of buying milk at lunch. How many weeks will it take ifthe calculator costs at least $128? (Set up an inequality to solve)X: Number of weeks

Answer 1

the calculator costs at least $128

He already has $36 saved up and adds to that $5 every week instead of buying milk at lunch

let the number of weeks = x

so, 36 + 5x > 128

Solve for x

5x > 128 - 36

5x > 92

divide both sides by 5

x > 92/5

X > 18.4

So, the number of weeks must be integer

so, x = 19 weeks