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WorksheetsQ2_Homework_1_Variations
Total questions: 15
Worksheet time: 44mins
“A car travels a distance of d kilometers in t hours. What type of variation illustrates this situation?
Direct Variation
Inverse Variation
Joint Variation
Combined Variation
“The number of pizza slices to the number of person sharing a whole pizza” illustrates what kind of variation?
Direct Variation
Inverse Variation
Joint Variation
Combined Variation
Suppose "y varies directly as x". If y = 42 when x = 6, solve for the constant, k.
252
42
7
6
Suppose "y varies directly as x". If y = 42 when x = 6, find y when x = 8.
48
56
63
72
Suppose "y varies inversely with x". If y = 25 when x = 2, solve for the constant, k.
250
50
10
5
Suppose "y varies inversely with x". If y = 25 when x = 2, find y when x = 5.
250
50
10
5
Alexa uses 400 g of flour to make 8 muffins. How much flour would he need to make 30 muffins?
50 grams
150 grams
500 grams
1500 grams
If the job to paint a fence is inversely proportional to the hours it will finish. If 4 people can paint a fence in 3 hours. How long will it take 6 people to paint it?
1 hour
2 hours
4 hours
5 hours
"The mass of a rectangular sheet of wood varies jointly as the length and the width". When the length is 20 cm and the width is 10 cm, the mass is 200 grams. Find the mass when the length is 15 cm and the width is 10 cm.
300 grams
250 grams
150 grams
100 grams
The volume V of a gas varies directly as its temperature t and inversely as its pressure P. If V = 80ml when t = 300 C and the P = 10kg/cm2, what will be the volume when t = 200 C and the P = 20kg/cm2?
20.33 ml
20.67 ml
26.33 ml
26.67 ml
Write an equation
The cost C of fish varies directly as its weight w in kilogram.
C =kw
W=kc
K= Cw
K =w/c
Write an equation
The distance D travelled by a car is directly proportional to its speed s.
S=kd
D=k/s
D=ks
K=Ds
The electrical voltage V varies jointly as the current I and the resistance R.
What is its translation?
V=klR
V=kR
V=k/IR
V=kI/R
H varies directly as the square root of F and inversely as the square of G. Given that the constant is k, find the relation betweehn H, F and G.
H=G2kF2
H=FkG2
H=G2kF
H=GkF
The equation y=x/4 represents:
direct variation
joint variation
inverse variation
none of these
