Multiply & Divide Rational Numbers Quick Check

Question

1 of 51 of 5 Items
Question
Use the properties of operations and rules for multiplying and dividing to solve:

(−2)×(1/5)÷(2/3)×(−5/6)÷(3/4)

(1 point)
Responses

1/6
Start Fraction 1 over 6 End Fraction

−1/6
negative Start Fraction 1 over 6 End Fraction

−2/3
negative Start Fraction 2 over 3 End Fraction

2/3

Answer 1

−2/3

Answer 2

Use the properties of operations and rules for multiplying and dividing to solve:

(9)÷(5/4)×(7/9)×(−5)÷(7/2)

(1 point)
Responses

−1,2258
negative Start Fraction 1,225 over 8 End Fraction

1,2258
Start Fraction 1,225 over 8 End Fraction

8
/8

−8

Answer 3

−8

Answer 4

Solve this multi-step problem. A runner completes 14 of a 5-mile race every 8 minutes. At the same pace, how far can the runner go in 16 minutes?(1 point)
Responses

2 1/2 miles
2 Start Fraction 1 over 2 End Fraction miles

1/8 mile
Start Fraction 1 over 8 End Fraction mile

160 miles
160 miles

1/10 mile

Answer 5

2 1/2 miles

Answer 6

A water tank decreases by 10 gallons every 3 hours every day. What is the total change in the amount of water in the tank after 6 days?(1 point)
Responses

480 gallons
480 gallons

−80 gallons
negative 80 gallons

−480 gallons
negative 480 gallons

80 gallons

Answer 7

−480 gallons

Answer 8

A recipe calls for 13 of a container of yogurt. Each container of yogurt has 150 calories. The recipe makes 4 servings. Which set of calculations would give the correct number of calories per serving?(1 point)
Responses

1/3×150÷4
Start Fraction 1 over 3 End Fraction times 150 divided by 4

1/3×150×4
Start Fraction 1 over 3 End Fraction times 150 times 4

1/3×150÷1/4
Start Fraction 1 over 3 End Fraction times 150 divided by Start Fraction 1 over 4 End Fraction

1/3÷150÷4

Answer 9

1/3×150÷4

Answer 10

Answers!
question 1: 2/3
question 2: -8
question 3: 2 1/2 miles
question 4: -480 gallons
question 5: 1/3 x 150 divided by 4.
have a great day!