Percent Equation

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Show your work for each problem.

1.
Which equation matches the question "What number is 40% of 65?"
1. a) $65x = 0.40$
2. b) $0.40x = 65$
3. c) $x = 40 \times 65$
4. d) $x = 0.40 \times 65$
2.
In a percent sentence such as "20% of 50", which operation does the word "of" stand for?
1. a)Addition (+)
2. b)Multiplication (×)
3. c)Subtraction (-)
4. d)Division (÷)
3.
Which equation solves "12 is 30% of what number?"
1. a) $x = 0.30 \times 12$
2. b) $12 = 30x$
3. c) $0.30 = 12x$
4. d) $12 = 0.30x$
4.
Which decimal is equal to 0.6%?
1. a)0.6
2. b)0.06
3. c)0.006
4. d)0.0006
5.
Without calculating exactly: how does 175% of 40 compare with 40?
1. a)It is less than 40
2. b)It is equal to 40
3. c)It is greater than 40
4. d)It is less than half of 40
6.
What number is 35% of 60?
7.
24 is 50% of what number?
8.
27 is what percent of 90? Write only the number, without the % sign.
9.
0.5% of what number is 3?
10.
63 is what percent of 45? Write only the number, without the % sign.
11.
What is 15% of 220?
12.
9 is 20% of what number?
13.
21 is what percent of 60?
14.
A jacket costs 72 dollars this year. That is 120% of last year's price. What was last year's price in dollars?
15.
Nora answered 46 of 50 questions correctly. What percent of the questions did she get right? Write only the number.
16.
0.25% of what number is 7?
17.
4.5 is what percent of 600? Write only the number.
18.
38 is 95% of what number? Solve it with the percent equation, then check it with the proportion $\frac{38}{x} = \frac{95}{100}$ .