7th Math Intro

Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. Select which statement is NOT true.

• Segment CD is half the length of segment GH.

• The measure of angle ADC is equal to the measure of angle EHG.

• The length of segment AB is 3 units.

• The area of ABCD is half the area of EFGH.

Kiran walked at a constant speed. He walked 1 mile in 15 minutes. Which of these equations represents the distance d (in miles) that Kiran walked in t minutes?

• d = t + 15

• d = (1/15) t

• d = t - 15

• d = 15t

The equation S = 50 + 45w represents the savings, S, after w weeks working and depositing money into a savings account at the bank. Determine whether there is a proportional relationship between S and w.

• Proportional

• Nonproportional

A circle has a radius of 40 cm. Which of these is closest to its area?

• 10,053 cm squared

• 5,026 cm squared

• 251 cm squared

• 10,053 cm

Lin is baking cakes. Each cake needs 0.75 cup of brown sugar, and Lin uses 4.5 cups of brown sugar for the entire batch of cakes. How many cakes does Lin bake?

• 4

• 5

• 6

• 7

A graduated cylinder actually contains 7.5 milliliters of water. When Han measures the volume of the water, his measurement is 7 millimeters. Which of these is closest to the present error for Han's measurement?

• 6.7%

• 7.1%

• 93.3%

• 107.1%