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1 2 3
72 36 24
у
4
18
3. Write an equation for the following statements:
a. The base b of triangle varies inversely as its altitude h.
b. The acceleration a of a car is inversely proportional to its mass m.
The weight W of an object is directly proportional to its mass m.
d. The volume V of a cylinder varies directly to its height h.
C.
7.
Solve for the indicated variable in each of the following. (2pts each)
a. If y varies directly as x and y=12 when x=4, find y when x=12.
b. If y varies inversely as x and y=-2 when x= - 8, find x when y=2.
5. Solve the following problems. (2 pts each)
a. The number of hours required to do a job varies inversely as the n
working. It takes 8 hours for 4 people to paint the inside of a house. H
it takes 5 people to do the job?
b. On a scale drawing, 2 feet represents 30 yards. How many yards
feet?​