#9 Staar Review

The area of a rectangle is 45.5 square inches. The base of the rectangle is 7 inches. What is the height of the rectangle in inches?

• 318.5 in

• 6.5 in

• 15.75 in

• 38.5 in

The sum of the measures of two angles is 123.7 degrees. One angle has a measure of 86. Write and solve an equation to find, m, the measure of the second angle.​ (a)   ​ (b)  

• 37.7
• 209.7
• 115.1

Holly bought a magazine subscription for a year. she paid $27. Holly wanted to find the price, p, of the subscription for each month. She created the model to help her find the price.

What is the price per month?

Mathematical Equivalence

ON

The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units. What is the length of the third side?

Mathematical Equivalence

ON

The sum of the measures of two angles is 183.6. One angle has a measure of 54. What is, m, the measure in degrees of the second angle?

Mathematical Equivalence

ON

The perimeter of the equilateral triangle is 15 inches. Select ALL equations that could be used.

(a)   ​ ​ (b)  

• 3x = 15
• x + x + x = 15
• x =153
• x = 15 – 3

Jack has 35 pages to read by the end of the day. He has read 15 pages so far. Which equation represents the number of pages Jack still has to read?

• p – 35 = 15

• 15p = 35

• 35 = p + 15

• 35 = p – 15

Which equation is modeled below?

• x – 15 = 24

• x + 15 = 24

• 24 + x = 15

• 24 ÷ x = 15

Sam earns $4 per hour completing chores on the weekends. Last weekend, he earned $10. Use the model to determine, the number of hours Sam worked last weekend.

• x=10

• x=2

• x=6

Carrie needs to determine the missing angle measure.  Which of the following equations could Carrie use to determine x?