8th grade math unit 7 teks 8.8ABC 85I 2022

Which of the following could be the equation of the graph below?

Darian had 40 pieces of gum and gave away x pieces. Kayden had 61 pieces of gum and gave away 4 times as many pieces as Darian. How many pieces did Darian give away if they ended up with the same amount?

• 7 pieces of gum

• 33 pieces of gum

• 21 pieces of gum

• 28 pieces of gum

Which of the following could be the slope-intercept equation of the graph?

What value of x makes this equation true?

10x + 9 = 4x - 9

• 0
• 3
• -3
• -18

Solve the equation
4x - 5x + 9 =5x - 9

• x = -3
• x = 9
• x = 3
• x = -9

Streaming movies from Amazon costs $3.99 per movie plus a $10.00 monthly fee. Streaming movies from Disney Plus costs $5.99 per movie plus a $8.00 monthly fee. The monthly costs depends on the number of movies,m, that have been rented.Which inequality shows the situation where the monthly cost of Amazon is more than the monthly cost of Disney Plus?

• 3.99m + 10 < 5.99 + 8m

• 3.99 + 10m < 5.99 +8m

• 3.99m + 10 > 5.99m +8

• 3.99m + 10 < 5.99m +8

Use the model to solve the equation.

3x - 2 = 2x + 3

• 5

• 13

• 1

• 2

Jonathan had $40 in his school lunch account. He spent $3.50 each day for lunch. Which of the following equations describes the relationship between d, the number of days, and m, the amount of money remaining?

• m= 36.50d

• m= 40 - 3.50d

• m = 40d - 3.50

• m = 3.50d - 40

Solve the following equation:

2n + 8 = 4n + 1.2

• n = 3.4

• n = 6.8

• n = 4.6

• n = -3.4

What value of x would make this equation true?

3 + 2x - 7 = 4x - 20

• 8

• -8

• 4

• -4