Open Up - Grade 7 - Mathematics - Unit 7 - Lesson 12

By Formative Library
Last updated about 3 years ago
6 Questions

For each prism, shade one of its bases.

The volume of both of these trapezoidal prisms is 24 cubic units. Their heights are 6 and 8 units, as labeled.
What is the area of a trapezoidal base of each prism?

Two angles are complementary. One has a measure of 19 degrees.

What is the measure of the other?

Two angles are supplementary. One has a measure that is twice as large as the other.

Find the two angle measures.

Match each expression in the first list with an equivalent expression from the second list.

8x-5+4-9
6x+17
7(x+2)-x+3
2(5x+4)
6x+3+4x+5
\frac{1}{5}x-10
24x+36
8x+(-5)+4+(-9)
\frac{-2}{5}x-7+\frac{3}{5}x-3
12(2x+3)

Clare paid 50% more for her notebook than Priya paid for hers. Priya paid x for her notebook and Clare paid y dollars for hers.

Write an equation that represents the relationship between y and x.

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