Question

Keiko received a $80 gift card for a coffee store. She used it in buying some coffee that cost $7.37 per pound. After buying the coffee, she

had $43.15 left on her card. How many pounds of coffee did she buy?

Answer 1

Let's start by finding out how much money Keiko spent on coffee. She started with an $80 gift card and ended up with $43.15 left, so she spent:

$80 - $43.15 = $36.85

We also know that the coffee costs $7.37 per pound. Let's use "x" to represent the number of pounds of coffee Keiko bought. Then we can set up an equation:

$7.37x = $36.85

To solve for x, we can divide both sides by $7.37:

x = $36.85 ÷ $7.37

x = 5

So Keiko bought 5 pounds of coffee.