A coffee shop sells bags of coffee for a regular price of
$8
per bag. Kevin bought some bags and used a coupon for
$10
off his entire purchase. After applying the coupon, he paid
$30
. How many bags of coffee did he buy?
Let the entire purchase amount be the number of bags he bought, B, times the price per bag
So B*8 = the entire purchase price
From this ...he subtracts $10 and pays $30
So we have this
B*8 - 10 = 30 add 10 to both sides
B*8 = 40 divide both sides by 8
B = 5 bags
Thanks. I might need helpin likeasec so ya
