Solving Equations & Direct Variation

In a direct variation, y = 39 when x = 3. 
Find the value of y when x = 2.

• 26
• 3
• 58.5
• 2

The amount of money earned on a job is directly proportional to the number of hours worked. If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

• $2

• $308

• $1.57

• $265

Tags

CCSS.6.RP.A.3C

Solve.   2x + 10 = 16

• 6
• 3
• 26
• 13

Tags

CCSS.7.EE.B.4A

Renting a kayak costs $10 per hour. Renting a canoe costs $5 per hour plus a $7 fee. Which equation could be used to determine h, the number of hours for which they each cost the same?

• 10h=5h+7

• 10h=5+7h

• 10h+5h=7

• 5h=10h+7

Julie started with 20 pieces of gum and gave away x pieces. Conrad started with 35 pieces of gum and gave away twice as many pieces as Julie did. How many pieces of gum did Julie give away if they had the same number of pieces of gum left?

• 18

• 5

• 15

• 8

Tags

CCSS.7.EE.B.4A

What value of x makes this equation true?

• 3

• -9

• -1

• 27

What is the solution to this equation?

2x + 3 = x − 4

• -3

• 0

• -7

• 7

The measures of two angles are (5x + 24)° and (9x - 17)°. What is the value of x if these angles are congruent?

• 1.75

• 13.2

• 0.5

• 10.25

Tags

CCSS.7.G.B.5

Solve for x in the equation below.

6(x + 3) = 3(x + 10)

• x=6

• x=4

• x=9

• x=8

• 1.3

• -1.3

• -0.75

• 0.75

Tags

CCSS.7.NS.A.1D