Unit 6 Lesson 7 Practice Problems

A crew has paved 3/4 of a mile of road. If they have completed 50% of the work, how long is the road they are paving?

• 1 1/2 miles

• 1.5 miles

• 1.25 miles

• 1 1/4 miles

40% of x is 35.

Write an equation that shows the relationship of 40%, x, and 35.

Use your equation to find x.

• 0.4x=35 ; x=87.5

• 0.4(35)=x ; x=14

• 0.4 + 35 = x ; x=35.4

Priya has completed 9 exam questions. This is 60% of the questions on the exam.

Write an equation representing this situation. Explain the meaning of any variables you use.

How many questions are on the exam?

• 9=0.6q where q is the number of questions on the exam.

• q=15

• 9=0.6/q where q is the number of questions on the exam.

• q=0.067

20% of a is 11. What is a?

• a=55

• a=555

• a=2.2

• a=22

75% of b is 12. What is b?

• b=16

• b=160

• b=9

• b=0.0625

80% of c is 20. What is c?

• c=25

• c=16

• c=0.04

• c=0.4

200% of d is 18. What is d?

• d=9

• d=36

• d=.11...

For the equation 2n−3=7, What is the variable?

• 7

• -3

• 2

• n

For the equation 2n−3=7, What is the coefficient of the variable?

• n

• 2

• -3

• 7

For the equation 2n−3=7, Which of these is the solution to the equation?

• 3

• 7

• 5

• 2