Percent Word Problems As Decimal Expressions Worksheet Page 6
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20Answer Key
Name:
Percent Word Problems as Decimal Expressions
Determine which expression is the correct answer.
A n s w e r s
1) This years model of a cell phone is 5 percent heavier than last years. This years model
weight is represent by w. Which expression can be used to calculate the weight of last years
C
1.
model?
A. w - 0.05
B. w × 0.05
C. w ÷ 1.05
D. w - 1.05
A
2.
2) Last year the price of a college textbook(b) was $258. This year the price will be 11%
higher. Which expression shows the difference in price from last year to this year?
C
3.
A. b × 0.11
B. b - 11
C. b - 0.11
D. b - 1.11
A
4.
3) A company was having a sale for 10% off the price of computer monitors. Which
expression shows how much money you would save if you bought 21 monitors for z dollars
C
5.
a piece?
A. 21z - 0.1
B. 21z + 0.1
C. 0.1 × 21z
D. 21z + 1.1
A
6.
4) A sandwich shop was charging $1.79 for a sandwich, but raised the price 5% making them
cost $1.88. Which expression shows how the new price was calculated?
D
7.
A. 1.79 × 1.05
B. 1.79 + 0.05
C. 1.79 + 1.05
D. 1.79 × 0.05
D
8.
5) An icecream bar was 692 calories. If they increased the size of the bar by 3% which
expression can be used to find the new calorie count?
A
9.
A. 692 + 0.03
B. 692 × 0.03
C. 692 × 1.03
D. 692 + 1.03
D
10.
6) A cell phone company dropped the prices on their phones by 6%. Which expression shows
the new price of the phones(p)?
A. p - 0.06p
B. p - 0.06
C. p - 1.06
D. p × 0.06
7) Over the summer gas prices dropped 3%. Which expression shows the new price of a gallon
of gas? (the old price is represented by g)
A. g - 1.03
B. g × 0.03
C. g - 0.03
D. g - 0.03g
8) Oliver drew a square with each side being exactly 14 centimeters long. If he wanted to
make the square 5% larger which expression can he use to find the new sides length?
A. 14 + 1.05
B. 14 + 0.05
C. 14 × 0.05
D. 14 × 1.05
9) A mall kiosk needed to buy 45 new cell phone cases at z dollars a piece. Because they were
buying so many they got 15% off the price. Which expression shows how much money they
saved?
A. 0.15 × 45z
B. 45z + 0.15
C. 45z - 0.15
D. 45z + 1.15
10) A store raised the price on watermelons 6%. The original price for each was X dollars.
Which expression shows the new price of the watermelons?
A. X + 1.06
B. X + 0.06
C. X × 0.06
D. X + (0.06 × X)
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