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Biblioteka

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

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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Pitanje 1
1.

For each prism, shade one of its bases.

Pitanje 2
2.

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?

Pitanje 3
3.

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

What is the measure of the other?

Pitanje 4
4.

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

Find the two angle measures.

Pitanje 5
5.

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

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

\frac{-2}{5}x-7+\frac{3}{5}x-3

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6x+17

24x+36

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2(5x+4)

8x-5+4-9

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\frac{1}{5}x-10

6x+3+4x+5

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8x+(-5)+4+(-9)

7(x+2)-x+3

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12(2x+3)

Pitanje 6
6.

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.