10: The base of a parallelogram is 6.25 inches, the altitude to this base is 4.63 inches, and a side is 5.38 inches. Find the area to the nearest tenth of its unit of measure.
23.3 sq. in
25.65 sq. in
28.9 sq. in
30.4 sq. in
11: A tank truck weighed 7284 pounds empty and 21,495 when filled with gasoline weighing 5.63 pounds per gallon. How many gallons of gasoline did it carry?
2524 gal.
2618 gal
2500 gal.
2554 gal.
12: A salesman received $18.23 for automobile mileage. He is allowed $.075 per mile. How many miles was he paid for?
256 mi.
275 mi.
243 mi.
284 mi.
13: A cubic foot of water weighs 62.42 pounds. A gallon of water weighs 8.34 pounds. Which is heavier and by how much, 60 gallons of water or 8 cubic feet of water?
60 gal; by 2.54 lbs
60 gal; by 1.04 lbs
8 cu. ft; by 2.54 lbs
8 cu. ft; by 1.04 lbs
2007-03-06 02:05:09 · 3 answers · asked by heather n 1 in Science & Mathematics ➔ Mathematics
Area of a parallelogram formula
A = b h
A = 6.25(4.63)
A = 28.9375
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7284 = truck weight empty
21495 = truck weight full of gasoling
Subtract 7284 from 21495
21495 - 7284 = 14211
Divide 14211 by 5.63
14211 / 5.63 = 2524.156306 gallons
2524 gallond rounded up
- - - - - - - -
$ 18.23 = recieved for automobile milage
0.075 = amount allowed per mile
divide 18.23 by 0.075 to find milage
18.23 / 0.075 = 243.0666667 miles
243 miles rounded up
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2007-03-06 03:19:12 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
10. Multiply base times the height. The side is just extra usless information
11. Subtract the weight of the empty truck from the filled truck. That will give you the weight of the gas. Now divide that by 5.63 and that will give you the number of gallons.
12. Divide 18.23 dollars by your ratio of .075 dollars per mile.
13. Multiply each of the two ratios by the numbers your given respectively. That is 62.42 punds per cubic ft times 8 cubic feet; 8.34 punds per gallon times 60 gallons
2007-03-06 10:40:58 · answer #2 · answered by piri82 3 · 0⤊ 0⤋
#10
Area of a parallelogram is base * height. Use the 6.25 as the base, and 4.63 as height.
#11
Find:
Weight when filled - weight when empty
then divide by weight of gas
#12
Payment divided by cost per mile
#13
62.42 x 60 = ??
8.34 x 8 = ??
compare them and determine which is bigger. Subtract them to find out by how much.
2007-03-06 10:14:48 · answer #3 · answered by Mathematica 7 · 0⤊ 0⤋