Solving for Unknowns

Find the height of the tree. (a)  

• 15 ft

• 8 ft

• 12 ft

• 13 ft

What is the value of x?

Round to the nearest tenth

Mathematical Equivalence

ON

What is the value of X?

• X=4

• X=6

• X=3

• X=2

Kendra earned a total of $625 selling jewelry. She sold 7 necklaces for $55 each. She sold 8 rings. Each ring was sold for the same price. The equation shown can be used to find r, the amount of money in dollars she earned for each ring sold. r = [625 − (7 × 55)] ÷ 8 What was the amount of money in dollars Kendra earned for each ring sold?

• $30

• $240

• $45

• None of these

Kendra earned a total of $625 selling jewelry. She sold 7 necklaces for $55 each. She sold 8 rings. Each ring was sold for the same price. The equation shown can be used to find r, the amount of money in dollars she earned for each ring sold. r = [625 − (7 × 55)] ÷ 8
What was the amount of money in dollars Kendra earned for each ring sold?

• $30

• $240

• $45

• None of these

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

Find missing side

• 5

• 7

• 9

• 11

Using a proportion, find the height of the tree.

• x = 0.0625 ft.

• 16 ft

• x = 16 ft.

Solve for x.

• x = 5

• x = 3

• x = 14

• x = 1