3 years ago

For the given value of a , find - a and |a|

1 answer:

5 0

$1.\\a=10.2\\-a=-10.2\\|a|=|10.2|=10.2\\------------\\2.\\a=-14\\-a=-(-14)=14\\|a|=|-14|=14\\-------------\\3.\\a=\frac{1}{2}\\-a=-\frac{1}{2}\\|a|=|\frac{1}{2}|=\frac{1}{2}$

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Shtirlitz [24]

560 / 28 = 20....so the driver travels 20 miles per gallon

on 35 gallons......35 * 20 = 700 miles <==

or u can also do it this way...

560/28 = x / 35....560 miles to 28 gal = x miles to 35 gal
cross multiply because this is a proportion
(28)(x) = (560)(35)
28x = 19600
x = 19600/28
x = 700 miles <==

so u can either do it by finding the unit rate or by making a proportion. either way will result in the same answer.

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