MATH MIDTERM

Evaluate the expression.

(1+8)² + 9

Tags

CCSS.6.EE.A.2C

Write an algebraic expression for this question.

The sum of 5 times a number x and 17

Answer explanation

5x + 17

Tags

CCSS.6.EE.A.2A

Write an inequality, equation or expression for the following sentence. Solve for z.

The quotient of 75 and the quantity of a number z and 2 is 25.

Answer explanation

75/(z+2)=25

75/3=75/(z+2)

z = 1

Tags

CCSS.6.EE.B.7

Check whether the solution below is correct.

5c – 13 = 12; 2

• Correct

• Incorrect

Tags

CCSS.6.EE.B.5

Check whether the solution below is correct.

7(x+9) > 92; 7

• Correct

• Incorrect

Tags

CCSS.7.EE.B.4B

A class of 17 6th grade students and 2 teachers goes to a trip to a science exhibit. Minor tickets cost 9$, while adult tickets cost 15$, with an entrance fee of 20$. Write an algebraic expression for the total cost.

Answer explanation

9m + 15a + 20 = n

9(17) + 15(2) + 20 = n

153 + 30 + 20 = 203

Tags

CCSS.HSA-SSE.A.1A

Write a rule of function to the following graph points.

(-8, 0)

(-4, 2)

Identify the domain and range of the function.

Answer explanation

Domain: (-8, -4)

Range: (0, 2)

y = 1/2x + 4

Approximate the square root to the nearest integer.

√120

Tags

CCSS.8.NS.A.2

Solve the equation.

n/-9=8

Answer explanation

n = -72

Tags

CCSS.6.EE.B.7

Find the formula for x using y=mx+b.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3