WorksheetsSecond Quarter: Reviewer in Variation
Total questions: 25
Worksheet time: 38mins
Y varies directly as the square root of an X and inversely as T. Given that k is constant, the relation between Y, X and T is
Y=TkX
Y=TkX
Y=XkT
Y=XkT
y=2x
y=10/x
y = 54/x
What kind of variation is shown in the graph?
Direct
Inverse
Joint
Combined
A type of variation that involves 3 or more quantities that may vary directly.
A. Direct Variation
B. Inverse Variation
C. Joint Variation
D. Combined Variation
The speed r of a moving object is inversely proportional to the time t travelled is written as
A. r = kt
B. r = k/t
C. t = kr
D. t = r/k
This is a variation where one quantity varies directly to other quantity and inversely to the other quantity.
A. Direct Variation
B. Inverse Variation
C. Joint Variaiton
D. Combined Variation
This is a variation where one quantity varies directly to other quantity and inversely to the other quantity.
A. Direct Variation
B. Inverse Variation
C. Joint Variaiton
D. Combined Variation
The outside temperature
and the number of layers of clothes you need to wear outside to feel comfortable
The grade you earn in a class
and the number of assignments you complete
and the number of hours you study
The length of time you charge your cell phone
and the battery power
You and some friends decide to buy 2 pizzas and split the cost evenly.
The number of friends who are sharing the cost of the pizzas
and the amount of money you pay for your share.
If y = 150 when x = 2, find y when x = 25.
Suppose p varies directly as r, and p varies inversely as t.
t = 20 when p = 4 and r = 2.
Find t when r = 10 and p = 5.
40
80
4
20
If y = 22.5 when x = 15, find y when x = 20.
If a = 15 when b = 4
and c = 5,
then find b when a = 60 and c = 5.
9. If 3 identical packages weigh 105 kg. How much will 15 of these packages weigh?
A. 315 kg
B. 525 kg
C. 1250 kg
D. 1575 kg
The frequency of a vibrating string varies inversely as its length. A string 3 feet long vibrates 175 cycles per
second. Find the frequency of a 5 foot string.
105 cycles
291.7 cycles
2625 cycles
332 cycles
The weight of a liquid varies directly as its volume V. If the weight of the liquid in a cubical container 5 cm on a side is 250 g, find the weight of the liquid in a cubical container 3 cm on a side.
12 g
6 g
27 g
54 g
10 workers can complete cutting the grasses if an area in 28 days. It is given that the number of days, t, varies inversely as the number of workers, n. How many days are needed if 7 workers are employed?
t=20
t= 28
t= 30
t= 40
