1) Lorraine would like to purchase a new pair of boots that cost $80. She has a coupon for 25% off. The following proportion can be used to help her determine the new price: (25…

Question

1) Lorraine would like to purchase a new pair of boots that cost $80. She has a coupon for 25% off.

The following proportion can be used to help her determine the new price:

`(25)/(100) = (x)/(80)`

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Answer 1

A) X represents the new price of the jacket after adding the coupon

B) There's a 100 in the denominator of the first ratio because it was originally a percentage, you multiply the percentage by 100 to figure out the decimal.

C) Cross multiply:

100x-2000

Then subtract 100 by both sides:

(100 cancels out each other) 100x-2000

2000-100= 1900

X=1900

Answer 2

$60

Explanation:

25/100x80=20

80-20=60