Math 7 Q3 Review

Equations

100

5x=30

x = 6

200

x/7=15

x = 105

300

3x - 4 = 17

x=7

400

-8 + 2x = 48

x = 28

500

(x + 4)/3 = 12

x = 32

Inequalities

100

4h > -32

h > -8

200

2b + 3 > 17

b > 7

300

-13 - g < 14

g > 27

400

4 - 5x > 44

x < -8

500

(w - 2)/4 > 6

w > 26

Circles

100

Find the area of a circle with a radius of 5 cm. Use 3.14 for pi.

78.5 cm²

200

Find the circumference of a circle with a diameter of 12 inches. Use 3.14 for pi.

37.68 in

300

Find the area of a circle with a diameter of 14 feet. Use the pi button and round to the nearest tenth. 

153.9 ft²

400

Find the circumference of a circle with a radius of 3.5 meters. Write your answer in terms of pi.

7π 

500

Find the area of a circle with a diameter of 15 yards. Use the pi button for pi. Round to the nearest tenth.

176.7 yards²

Volume

100

What is the volume of a shoe box with the dimensions of 6 inches by 8 inches by 4 inches?

192 in³

200

Find the volume of a cylinder can that has a radius of 4 cm and a height of 10 cm. Use 3.14 for pi.

502.4 cm³

300

Find the volume of a cylinder with a diameter of 18 meters and a height of 30 meters. Use 3.14 for pi.

7630.2 m³

400

Find the volume of a composite figure made of a cylinder with a radius of 5 inches and a height of 10 inches stacked on top of a box with a length of 12 inches, width of 7 inches, and height of 8 inches. Use 3.14 for pi.

1457 in³

500

There is a box with a cylindrical shape removed from the center. The box has a length of 14 cm, width of 10 cm, and height of 9 cm. The cylinder is a radius of 3 cm. Find the volume of the box after the cylinder is removed. Use 3.14 for pi.

1005.7 cm³