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quetzaliescalona
26.06.2019 •
Mathematics
Suppose y varies directly with x and y equals 25 when x equals 140 what is the value of x when y equals 36
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Ответ:
Since x and y are directly proportional, you can just set up an equation.
x/y=140/25=x/36.
Cross multiply the last two fractions to get 140*36=25x
Solving for x gives you 201.6 or 1008/5
Ответ:
~Why?~
-Because, half of 20 is 10. which is the same as 1/2 BUT, take a look at the 1 11/20. 11/20 is greater than 1/2 because 11/20 has one more than 1/2 Meaning 11 is one more than 10, which is half of 20.
~Hope this helped :)