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slonekaitlyn01
26.06.2019 •
Mathematics
In the last race , the first car in the pit used 1 3/4 tanks of gas, the second car used 2 1/8 and the third car used 1 1/2 tanks of gas. what was the total positive or negitive change in the amount of gas for all three cars
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Ответ:
Step-by-step explanation:
Let the x be the number of tanks of gas, then
The amount of gas used by first car=![1\frac{3}{4}x=\frac{7}{4}x](/tpl/images/0018/3646/64471.png)
The amount of gas used by second car=![2\frac{1}{8}x=\frac{17}{8}x](/tpl/images/0018/3646/96d1a.png)
The amount of gas used by third car=![1\frac{1}{2}x=\frac{3}{2}x](/tpl/images/0018/3646/3cfeb.png)
Thus, the total change in the amount of gas for all three cars=![\frac{7}{4}x+\frac{17}{8}x+\frac{3}{2}x](/tpl/images/0018/3646/bb54e.png)
Since, the amount of gas
tanks of gas is used for all three cars.
Therefore, the total amount would be negative .
hence, the answer is
tanks of gas.
Ответ:
ok btw love your name