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Operations With Rational Numbers
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Operations With Rational Numbers
5 Questions
I
By Psdrake on November 8, 2010
Mathematical operations with decimals and percents.
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1.
45.17 + 327.19 =
A.
37.92
B.
372.96
C.
778.9
2.
58.49 x 22.118 =
A.
1293.68182
B.
12936.8182
C.
129.37
3.
457.89 - 32.74 =
A.
13.15
B.
425.15
C.
490.63
4.
210.45 / .05 =
A.
42.90
B.
420.9
C.
4209
5.
How could you find 15% of $72.00
A.
Convert 15% to the decimal .15 and multiply $7.20 times .15.
B.
10% of $72.00 is $7.20 plus 5% of $72.00 is half of 10%, so $7.20 plus $3.60 equals $10.80.
C.
Find 1% of $72.00 which is .72 and multiply by 15.
D.
A
E.
A and B
F.
All of the above.
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