Question

11. You have one coupon for 15% off on one

pound of pork chops. They cost $7 per
pound. How much will 3 pounds cost?​

Answer 1

$17.85

Explanation:

15% = $0.15 off every dollar

$7 - .15(7) = $1.05 off of every lb.

$1.05 x 3 pork chops = $3.15 off total

$7(3 pork chops)=$21

then subtract the $3.15 off the coupon gives you.

$21-$3.15= $17.85

EDIT: I READ THE QUESTION WRONG! THIS IS INCORRECT.

my answer is for 15% off of the ENTIRE purchase not just 1 pork chop, sorry my bad

Answer 2

$19.95

Explanation:

The total cost for 3 pounds can be found using:

1 pound + 1 pound + 1 pound

We know that there is a coupon for 15% off one pound. Normally you pay for 100%, but since there is 15% off (subtracted), you only pay 85%. (100%-15%=85%)

Multiply 85% and $7.

85%* $7

Convert 85% to a decimal by dividing 85 by 100.

85/100= 0.85

0.85 * $7

Multiply

$5.95

Now we know that 1 discounted pound costs $5.85. The other 2 pounds are regularly priced at $7 each.

1 pound + 1 pound + 1 discounted pound

$7 + $7 + $5.95

$14 + $5.95

$19.95

3 pounds will cost $19.95