seven and thirty twp hundreths plus two and one tenth times two and seven tenths minus 18a

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04-05-2018
Mathematics

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seven and thirty twp hundreths plus two and one tenth times two and seven tenths minus 18a

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JonHenderson55 JonHenderson55 · Answer 1 · 2018-05-04T23:50:44+02:00

Answer: Write the expression as:

" 70 [tex] \frac{32}{100} [/tex] +
2[tex] \frac{1}{10} [/tex] * 2[tex] \frac{7}{10[/tex] − 18a " ;
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or; write as:
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" 70.32 + (2.1) * (2.7) − 18a " ;
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To simplify:
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Using "PEDMAS" (the "order of operations") ;

the "multiplication" comes first;

So: → "(2.1) * (2.7) = 5.67 " .

And rewrite:
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" 70.32 + 5.67 − 18a " .

Now: " 70.32 + 5.67 = 75.99 " ;

So, we can the final simplified expression as:
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" 75.99 − 18a " ;

or; write as: " 75[tex] \frac{99}{100} [/tex] − 18a " .
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