7th Finals Review

Solve for X

100

3x + 7 = 13

x = 2

200

2(x - 4) = 12

x = 10

300

5x + 4 - x = -7 + 2 + x

x = -3

400

8 - 2(x - 2) = 4x

x = 2

500

4(x + 3) = 27 - x

x = 3

Geometry

100

Find the missing side of this right triangle:

a = 15in

b = 8in

c = ?

c = 17in

200

Find the area:

Triangle Base of 24m, height of 16m

A = 192m²

300

Find the area of a trapezoid with:

Height of 13cm, base 1 of 5cm, base 2 of 8cm

84.5cm²

400

Volume of a Rectangular Prism:

L = 12cm, W = 13cm, H = 5cm

780cm³

500

Volume of a cylinder (to the nearest cube unit)

r = 6ft, h = 12ft

1,357ft³

Inequalities

100

4x + 8 > 12

x > 1

200

12 - 2x > 24

x < -6

300

6 > x/8 + 12

-48 > x

400

-10 -2x > 14

x < -12

500

x/7 + 12 < 19

x < 49

Ratios/Proportions

100

Solve for x:

14 to 36 = 7 to x

x = 18

200

Solve for X:

40:16 = x:2

x = 5

300

What percent of 82 is 24? Round to the nearest 10th

29.3%

400

22 is what percent of 1,000? Round to the nearest 10th

2.2%

500

96 is 72% of what number? Round to the nearest 10th

133.3