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Learning Task 4
A. Solve the following:
1. The distance (d) from the center of the seesaw varies inversely as the weight (w)
of a person. JB who weighs 50 kg sits 3 feet from the fulcrum. How far from
the fulcrum must JP sit in order to balance with JB if he weighs 35 kg?
2. The number of pages (p) that Ethan reads varies directly as the number of
hours (t) he is reading.
A. write the variation equation
B. If he can read 21 pages in 14 minutes, how may pages can he read in 21
minutes?
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3. The pressure of the gas is directly proportional to the temperature and inverse
ly proportional to its volume.
A. Write the variation equation.
amperature and
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B. What happened to the pressure if the volume is reduced to half and the
temperature is doubled?
4. Given the equation y=k where k is the constant of variation, tell whivh
statement is true or false.
2
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2
HTYON
A. y and r varies directly.
B. y and q2 are directly proportional
C. y and pq2 varies jointly
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LABARZO
D. p and r are inversely proportional
E. y and p varies directly.
5. The volume of a cylinder is given by the formula V = nr2 h. If r is increased by
50% and the height is reduced by 25%, what will happen to the volume? What
is the constant of variation,
B. Give at least three examples of quantities you know or you have or experienced
that show different types of variation.​