7th Grade Midterm

− 3 ⅓ + 2½ ₌

• ₋⅚
• - 1 ⅙
• - 1 ⅚
• - ⅙

15 - 3 ⅘

• 12 ⅘
• 18 ⅘
• 11 ⅕
• 12 ⅕

The equation y=6.75x models the cost, in dollars, to purchase x pounds of steak at grocery store 1. Which equation models the cost of x pounds of steak at grocery store 2?

10 + (-4) = ?

• -6
• 6
• 14
• -14

-14 + (-3)

• -17
• 11
• -11
• 17

5-19

• 14
• 24
• -14
• -24

Using the model, write the equation.

• 6 = 2+x;

• 6 = -2x;

• -6 = 2x;

• 6 = 2x;

Find the unit rate per ounce of a bag of Fritos that costs $2.29 for 9 ounces.

• $0.25
• $20.61
• $1.00
• $2.29

What is the scale factor?

• k = 2

• k = 1/2

• k = 4

• k = 1/4

• 50

• 29

• 5.72