Inverse
Y varies inversely as X. Write the inverse-variation equation, and find Y for the given values of X. Y=36 when X=9; X-values: 3,4,5,6
Y= 324/X; 108, 81, 64.8,54,
Y varies Jointly as X and Z Write the Joint-Variation equation, and find Y for the given values of X and Z. Y=-108 when X=-4 and Z=3; X=6 and Z=-2
Y=9XZ; -108
Z varies jointly as X and Y, and inversely as W. write the combined-variation equation, and find X for the given values of X,Y, and W. Z=3 when X=4, y=-2 and W=-4; X=6,Y=7,W=-4
Z=2XY/W; -15.75
Y varies inversely as X. Write the inverse-variation equation, and find Y for the given values of X. Y=0.5 when X=8; X-values: 5,4,3,2,1
Y=4/X; 0.8,1,1,3,2,4
Y varies Jointly as X and Z Write the Joint-Variation equation, and find Y for the given values of X and Z. Y=15 when X=9 and Z=1.5; X=18 and Z=3
Y=10/9XZ; 60
Z varies jointly as X and Y, and inversely as W. write the combined-variation equation, and find X for the given values of X,Y, and W. Z=36 when X=9, Y=10 and W=15; X=10,Y=18,W=5
Z=6XY/W; 216
Y varies inversely as X. Write the inverse-variation equation, and find Y for the given values of X. Y=14 when X=8; X-values: 10,15,20
Y=112/X; 11.2, 7.47, 5.6
Y varies Jointly as X and Z Write the Joint-Variation equation, and find Y for the given values of X and Z. Y=120 when X=8 and Z=20; X=54 and Z=7
Y=3/4XZ; 283.5
Z varies jointly as X and Y, and inversely as W. write the combined-variation equation, and find X for the given values of X,Y, and W. Z=100 when X=100, Y=7 and W=2; X=3.5,Y=24,W=27
Z=2XY/7W; 8/9
Y varies inversely as X. Write the inverse-variation equation, and find Y for the given values of X. Y=1000 when X=0.2; X-values: 10^2,10^3,10^4
Y=200/X; 2,0.2,0.02
Y varies Jointly as X and Z Write the Joint-Variation equation, and find Y for the given values of X and Z. Y=10^4 when X=10^2 and Z=10^1; X=10^5 and Z=10^2
Y=10XZ; 10^8
DAILY DOUBLE!!! A bicycle's pedal gear has 53 teeth and is rotating at 65 revolutions per minute. A chain links the pedal gear to a rear-wheel gear that has 18 teeth and is attached to a 26-inch wheel. At what speed, in miles per hour, is the bicycle traveling?
14.5 miles per hour
Y varies inversely as X. Write the inverse-variation equation, and find Y for the given values of X. Y=13.5 when X= 4.5 X-values: 0.5,1,1.5,2, and 2.5
Y=60.75/X; 121.5,60.75,40.5,30.375,24.3
A prism has a height of eight inches, a length of X and a Width of Z. Write an equation for the volume of the prism, and find the volume of the prison when the length is 4 inches and the width is 2 inches
V=8XZ; 64 cubic inches
The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. A wire with a length of 200 inches and a diameter of one-quarter of an inch has a resistance of 20 ohms. Find the electrical resistance in a 500 inch wire with the same diameter.
50 Ohms