Your computer store is having an incredible sale. The price on one model is reduced by 40%. Then the sale price is reduced by another 40%. If x is the computer’s original price, the sale price can be modeled by ( x − 0.4 x ) − 0.4 ( x − 0.4 x ) . a. Factor out ( x − 0.4 x ) from each term. Then simplify the resulting expression. b. Use the simplified expression from part (a) to answer these questions. With a 40% reduction followed by a 40% reduction, is the computer selling at 20% of its original price? If not, at what percentage of the original price is it selling?
Your computer store is having an incredible sale. The price on one model is reduced by 40%. Then the sale price is reduced by another 40%. If x is the computer’s original price, the sale price can be modeled by ( x − 0.4 x ) − 0.4 ( x − 0.4 x ) . a. Factor out ( x − 0.4 x ) from each term. Then simplify the resulting expression. b. Use the simplified expression from part (a) to answer these questions. With a 40% reduction followed by a 40% reduction, is the computer selling at 20% of its original price? If not, at what percentage of the original price is it selling?
Solution Summary: The author explains how to calculate the percentage of the original price the computer is being sold at.
Your computer store is having an incredible sale. The price on one model is reduced by 40%. Then the sale price is reduced by another 40%. If x is the computer’s original price, the sale price can be modeled by
(
x
−
0.4
x
)
−
0.4
(
x
−
0.4
x
)
.
a. Factor out
(
x
−
0.4
x
)
from each term. Then simplify the resulting expression.
b. Use the simplified expression from part (a) to answer these questions. With a 40% reduction followed by a 40% reduction, is the computer selling at 20% of its original price? If not, at what percentage of the original price is it selling?
I have $8000 to invest, and I want to choose between one investment at 4.75% and a second
investment at 12.5%. If I invest x dollars in the first investment at 4.75%, write an expression
for how much interest I will accrue in 6 years from these two investments.
I = 1,000+ 0.0775x
1 = 6,000
1 = 6,000 - 0.465x
I= 6,000+ 0.465x
I = 1,000 - 0.0775x
O I = 1,000
Chapter P Solutions
Blitzer Algebra And Trigonometry, 6th Edition, 9780134585291, 0134585291, 2018
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