Algebra 1 MP 4 Week 6 Homework

Your car needs new brakes. You call a dealership and a local mechanic for prices. After how many hours are the total costs the same at both places? Justify your answer.

• just over 3 hours

• just over 2 hours

• just over 1 hour

• just over 4 hours

Tags

CCSS.8.EE.C.8C

Your friend was solving the equation shown and was confused by the result "-8 = -8" What does this result mean.

• There is one solution.

• There are many solutions.

• There are no solutions.

Tags

CCSS.8.EE.C.7A

Solve the equation.

x - 7 = 15

• -22

• 22

• 8

• -8

Tags

CCSS.6.EE.B.7

Solve the equation.

3(x+4) -1 = -7

• x = -9

• x = 9

• x = 6

• x = -6

Tags

CCSS.7.EE.B.4A

Solve for y by itself. Choose all the correct answers.

9x - 3y = 18

• y = -6 + 3x

• y = 6 - 3x

• y = 3x - 6

• y = 9x + 3

Tags

CCSS.6.EE.C.9

A mountain biking park has 48 trails, 37.5% of which are beginner trails. The rest are divided evenly between intermediate and expert trails. Ho many of each kind of trail are there?

• 12 beginner, 18 intermediate, 18 expert

• 18 beginner, 15 intermediate, 15 expert

• 18 beginner, 12 intermediate, 18 expert

• 30 beginner, 9 intermediate, 9 expert

Tags

CCSS.7.EE.B.3

Which of the equations are equivalent?

• 6x + 6 = -14

• 8x + 6 = -2x - 14

• 5x + 3 = -7

• 7x + 3 = 2x - 13

Tags

CCSS.8.EE.C.7A

The water temperature of a swimming pool must be no less than 76 degrees Fahrenheit. The temperature is currently 74 degrees Fahrenheit. Which graph correctly shows how much the temperature needs to increase?

• 
• 
• 
• 

Tags

CCSS.7.EE.B.4B

A one-way ride on a subway costs $0.90. A monthly pass costs $24. Write an inequality that represents how many one-way rides you can buy before it is cheaper to buy the monthly pass. Is it cheaper to pay the one-way fare for 25 rides?

• x ≥ 26, yes

• x ≤ 27, yes

• x ≤ 26, yes

• x ≥ 27, no

Tags

CCSS.6.EE.B.8

Your current balance in your checking account is $320. Write and solve an inequality that represents how many $20 bills you can withdraw from the account without going below the minimum balance. The minimum balance is $100. Choose the inequalitie(s) that represent the situation. (check all that apply)

• x ≤ 11

• 20x ≤ 220

• 20x + 100 ≤ 320

• 20x ≥ 220