Question

Andy is buying a new laptop computer. The store is offering a 15% discount on the model he wants. Andy also has a certificate from the manufacturer good for $120 off his next computer purchase. Write the composite function showing the certificate being applied after the discount. What will Andy pay for a computer that costs $1199.00?

Answer 1

$899.15

0.85(1199) - 120

Explanation:

To find the purchase total, multiply the price by the percent paid and subtract the certificate.

The store offers a 15% discount. This means you pay 85% of the price. So the discounted price is 0.85(1199) = 1019.15

Subtract the certificate 1019.15 - 120 = 899.15

The composite function is 0.85(1199) - 120.