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1. Y varies inversely as x and y = 50 when x = 4, find y when x = 12.

a. 12
b.24
c. 36
d. 48

2. Z varies jointly as x and y. if z = 30, when x = 3 and y = 15, find z when x = 6 and y=9.

a. 12
b.24
c. 36
d.48

3. The pressure P of a gas varies directly as its temperature t and inversely as its volume v. What is the equation of variation?

a. k= P/tv
b. P= kt/v
c. P=kv/t
d. k = pv/t

4. A post 5m high cast a shadow of 6m. If the shadow of a nearby tree is measured to be 24m, how high is the tree?

a. 144 m
b. 120 m
c. 30 m
d. 20 m

5. What type of variation is illustrated by the table?
x | 10 | 20 | 30 | 40 |
y | 1 | 2 | 3 | 4 |

a. direct
b. inverse
c. joint
d. combined

pls help me​

Sagot :

Answer:

1.C

2.A

3.D

4.A

5.B

Step-by-step explanation:

Yan po hope it's help Pa Brainliest answer nlng po