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Karo-lina-s [1.5K]
2 years ago
5

How to work out 12.5% of a number

Mathematics
1 answer:
mario62 [17]2 years ago
4 0

Step-by-step explanation:

12.5÷100 × 5

=0.125×5

=0.625

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7\dfrac{1}{5}=\dfrac{7\cdot5+1}{5}=\dfrac{35+1}{5}=\dfrac{36}{5}\\\\6\dfrac{2}{5}=\dfrac{6\cdot5+2}{5}=\dfrac{30+2}{5}=\dfrac{32}{5}\\\\7\dfrac{1}{5}-6\dfrac{2}{5}=\dfrac{36}{5}-\dfrac{32}{5}=\dfrac{36-32}{5}=\boxed{\dfrac{4}{5}}



7\dfrac{1}{5}-6\dfrac{2}{5}=(7-6)+\left(\dfrac{1}{5}-\dfrac{2}{5}\right)=1+\dfrac{1-2}{5}=1+\dfrac{-1}{5}=1-\dfrac{1}{5}\\\\=\dfrac{5}{5}-\dfrac{1}{5}=\dfrac{5-1}{5}=\boxed{\frac{4}{5}}
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A florist puts together a bouquet of roses for an order and picks 5 roses randomly from a bucket with red and white roses. Of th
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Step-by-step explanation:

3 0
2 years ago
Solve the following system of liner equations:
nexus9112 [7]
First we get the value of y in terms of x

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We transpose 2x and 9 to the other side so we could get the value of y being:
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Now that we have the value of y we can substitute it to the first equation
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Simplifying the inside of the parentheses we would have
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Combining similar terms we would get
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We transpose 37 to the other side for easier simplification
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We divide both sides by 12 to get the value of x
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y = - 17/6
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Final values of x and y would be
x = - 3.0833
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Answer:

m= -3

Step-by-step explanation:

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