Question

donna received a $70 gift card for a coffee store. she used it in buying some coffee that cost $7.84 per pound. after buying the coffee, she had $30.80 left on her card. how many pounds of coffee did she buy?

Answer 1

P= pounds of coffee

$70 minus the price per pound times the number of pounds equals the amount left on the card ($30.80).

$70 - $7.84p= $30.80

subtract 70 from both sides
-7.84p= -39.20

divide both sides by -7.84
p= 5 pounds of coffee

Hope this helps! :)

Answer 2

Hello!

Let's solve this step by step!
So, we know that after Donna will have $30.80 remaining after buying a certain number of pounds, and we also know that each pound of coffee costs $7.84.

Subtract the amount that will be left from the gift card.

70 - 30.80 = 39.2

Now, divide this by the cost per pound.

39.2 ÷ 7.84 = 5

A N S W E R:

Donna bought 5 pounds of coffee.

Good day!