current i and the resistance R has the equation of
II. A. Analyze the given statements and choose the letter of the correct answer on the
1. When the area (A) of a rectangle is constant, its width (w) varies inversely as
equation describes this relationship?
a. A w/
b. A=l/w
c. WRAN
d. w. Al
2. What happens to y if y varies inversely as x, and x is doubled?
a. Stays the same b. Doubled also
c. Half as large
3-4. When a car travels at a constant speed, the distance traveled d varies d
travels 150 miles in 2.5 hours, how far will the same car travel in 4 hours?
a. 180 miles
b. 220 miles
c. 240 miles
d. 265
5-6. Suppose y varies jointly as x and z. Suppose further that y=60 when
and z=10
a. 81
b. 96
c. 120
d. 15
7. The amount of time (t) it takes a block of ice to melt in water is invers
temperature (T). Express this as an equation.
a. t=KT
b.tk/T
c. t=T/K
8-10. Feel the beat of your heart and the ticking of your watch. Your heartbe
watch every second.
8. In which activity would your heartbeat faster?
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Answer:
1.A
2.C
3-4.B
5-6.D
7.B
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