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?

$19.95

Step-by-step 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

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s