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qaws [65]
3 years ago
7

The total cost of five pens and eight mechanical pencils is 12.65. The cost of each mechanical pencil is 0.75 cents. Which repre

sents the cost of each pen
Mathematics
1 answer:
Tanya [424]3 years ago
7 0

Answer:

the cost of each pen is 1.33

Step-by-step explanation:

if you multiply 0.75 by 8 you get 6 after that you subtract 6 from 12.65 which means you have 6.65 which you divide by 5 which equals 1.33  

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Answer:

-\frac{2}{3} - (-\frac{3}{4}) = \frac{1}{12}

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Step-by-step explanation:

Given

-\frac{2}{3} - (-\frac{3}{4})

Required

Solve:

-\frac{2}{3} - (-\frac{3}{4})

Open bracket

-\frac{2}{3} - (-\frac{3}{4}) = -\frac{2}{3} +\frac{3}{4}

Take LCM

-\frac{2}{3} - (-\frac{3}{4}) = \frac{-8+9}{12}

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Take LCM

\frac{5}{6} + \frac{5}{12} = \frac{10+5}{12}

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Divide by 3/3

\frac{5}{6} + \frac{5}{12} = \frac{5}{3}

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