Questions 1-5
Determine the additive inverse of -9.2.
9.2
Which of the following statements best describes the solution to the problem below?
-3/6 . (-3/8)
A. The solution will be positive because both fractions are even.
B. The solution will be negative because there are two negative signs.
C. The solution will be positive because there are two negative signs.
D. The solution will be negative because there are two fractions.
C. The solution will be positive because there are two negative signs.
Solve.
7/8 / -1/6
A. -7/48 B. -5 1/4
C. -5 1/8 D. -5 1/2
B. -5 1/4
Solve.
-6.3 . 5
-31.5
Which property is being used in the second line?
Line 1: (4.5 . -1) . -6
Line 2: 4.5 . (-1 . -6)
Line 3: 4.5 . 6
Line 4: 27
Associative Property
-3/4 is a rational number, but not an integer. Explain why.
Rational number can be fractions, but integers are not. Integers are negative, 0 and positive whole numbers.
Precipitation for the month of March was 4 3/4 inches less than average. In April the precipitation was 1 1/2 inches less than average. How many inches below average was the precipitation for both March and April?
6 1/4 inches below average
A skydiver took 10 seconds to drop 500 feet. What is the rate of descent of the skydiver?
A. -50 feet per second
B. 5000 feet per second
C. 50 feet per second
D. -5000 feet per second
A. -50 feet per second
Solve.
-11.0 - 3.5
-14.5
There are 48 people in a gym class. What fraction represents the number of people running?
* 5/8 of the people were in spin class
* 1/3 of the people were lifting weights
* the remaining people were running
A. 1/24 B. 23/24 C. 1/8 D. 1/12
A. 1/24
The record low temperature in Fargo, ND is -35o F. The record high is 114o F. What is the difference in the record high and the record low temperatures?
149o F
A container of rainwater is evaporating at 1.6 inches a week. How many weeks will it take for the rainwater in the container to evaporate 24 inches?
A. 18 weeks
B. 12 weeks
C. 8 weeks
D. 15 weeks
D. 15 weeks
Solve.
-3/4 + (-3/8)
-1 1/8
Emma borrowed $89.40 from her sister. She determines that she can pay her back in six months worth of allowance. What effect will Emma's repayment have on her monthly bank account?
A. -$84.90
B. -$14.90
C. $14.90
D. -$16.98
B. -$14.90
Solve.
15.6 + (-1.8)
13.8
Which of the following situations combine to make zero?
A. The temperature falls 10 degrees below 0 and then rises to 10 degrees F.
B. A friend borrows $20 and promises to return double the amount.
C. A start-up business has income equal to its expenses.
C. A start-up business has income equal to its expenses.
26.04 / -6.2
-4.2
Mrs. Magee is purchasing 2.8 pounds of asparagus that costs $2.55 per pound. How much change will Mrs. Magee receive if she gives the cashier $10.00?
$2.86
Solve.
5/8 / 3/4
5/6
Jesse needs 8 1/4 feet of chain to complete an outdoor project. He has two small pieces measuring 2 1/8 feet and 3 3/4 feet. How many feet of chain does Jesse need to purchase?
A. 2 3/4 B. 2 3/8 C. 3 3/4 D. 3 5/8
B. 2 3/8