Question

Mr graves’ fifth-grade class is selling packages of energy-saving light bulbs to raise money for a class trip.Each package costs $32.The students need to raise $2,500.About how many packages of light bulbs must they sell?

Answer 1

80

Explanation:

2,500 divided by 32 = 78 R4

78 R4 rounded to the nearest ten is 80

Answer 2

79

Explanation:

Ok so we have the amount they need at least which is 2500, now we have 32 which is how much each package is being sold for, and we have x which is the number of of packages being sold.

2500= 32x, now we divide both sides by 32 to isolate x. When you do that you get 78.125, but since you don't sell 1/8 of a package you sell 1 more. Therefore you sell at least 79 packages.

Hopefully this helped!