1. What is the value of y when x = 16, if y varies directly as x and y = 3 when x = 8?
a. 2 b. 4 c. 6 d. 8

2. What is the value of y when x = 1.5, if y varies directly as x and y = -16 when x = 6?
a. −1 b. -2 c. -3 d. −4

3. What is the value of y when x = 2.5, if y varies inversely as x and y = 3 when x = 5?
a. 2 b. 5 c. 10 d. 6

4. The load that a beam of constant length can support varies jointly as its width and the square of
its height. If the beam 1.2 m wide and 0.5 m high can support a load of 900 kg, find the height of a
beam 0.3 m wide that can support a load 3 600 kg.
a. 1 m b. 1.5 m c. 2 m d. 3 m

5. Scout Master Cherry Bagay prepared food for 120 boy scouts to last for 2 weeks camping. If 40 did
not join the camping, how much longer will the food lasts?
a. 3 weeks b.4 weeks c. 5 weeks d. 6 weeks

6. Francis who weighs 40 kg wishes to balance Kergie who weighs 30 kg on a seesaw. If Kergie sits 40
cm from the fulcrum, how far from the fulcrum must Francis sit?
a. 10 b. 20 c. 30 d. 40
For numbers 7 to 8 If z varies directly as x and inversely as y, and z = 9 when x = 6 and y = 2.

7. What is the value of k?
a. 3 b. 4 c. 2 d. 1

8. What is the value of z when x = 8 and y = 12?
a. 4 b. 1 c. 2 d. 3

9. The area A of a trapezoid varies jointly as the height h and the sum of its bases b1 and b2.

10.What is
the value of k if A = 48 cm2 , h = 8 cm, b1 = 5 cm and b2 = 7 cm?
a. 2 b. 1 c. 0.5 d. 1.5

Paki answer po pls​