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Name<br />
� LESSON MASTER 2-7B page 2<br />
4. While studying gears, a physics class<br />
collected the data in the table<br />
relating the number of teeth in a gear<br />
and the speed of the gear in revolutions<br />
per minute. What would be the speed<br />
of a gear with 30 teeth?<br />
a.<br />
5. The table to the right gives the<br />
number of square tiles of various<br />
sizes needed to floor a small<br />
restaurant kitchen. How many<br />
square tiles with 8-in. sides<br />
would be needed?<br />
a.<br />
6. A packaging specialist studied the weights of 100 ball<br />
bearings of various diameters. The data are in the table.<br />
a.<br />
32<br />
S<br />
100<br />
80<br />
60<br />
40<br />
20<br />
N<br />
2000<br />
1000<br />
Diameter of bearing (mm) 3 4 5 6 7 8<br />
Weight of 100 bearings (grams) 12 28 54 93 147 220<br />
Number of teeth 10 12 18 24 36<br />
Speed (rpm) 108 90 60 45 30<br />
What would be the weight of 100 ball bearings with 10-mm diameters?<br />
W<br />
200<br />
100<br />
6 12 18 24 30 36<br />
4 8 12<br />
T<br />
2 4 6 8 10<br />
D<br />
L<br />
b.<br />
c.<br />
d.<br />
Length of tile side 4 in. 6 in. 9 in. 12 in.<br />
Number of tiles 1944 864 384 216<br />
b.<br />
c.<br />
d.<br />
b.<br />
c.<br />
d.<br />
UCSMP Advanced Algebra © Scott, Foresman and Company