jazzy63
jazzy63
02-09-2016
Mathematics
contestada
need help on both of them
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SyntaxError
SyntaxError
02-09-2016
7) Write the decimal number as a fraction
(over 1)
2.18 = 2.18 / 1
Multiplying by 1 to eliminate 3 decimal places
we multiply top and bottom by 3 10's
Numerator (N)
N = 2.18 × 10 × 10 × 10 = 2180
Denominator (D)
D = 1 × 10 × 10 × 10 = 1000
N / D = 2180 / 1000
Simplifying our fraction
= 2180/1000
= 109/50
= 2 9/50
8)[tex]7 ^{-5} = \frac{1}{7^{5}} [/tex]
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