 , 27.07.2019 05:30 dontworry48

# Sarah drove 40 miles per hour. in 3 hours, sarah drove 120 miles. which is a valid proportion to the problem? a. 40/1 = 120/3 b. 1/40 = 120/3 c. 40/3 = 120/1 d. 1/40= 120/3  The valid proportion is A. 40/1 = 120/3 :) Hello!

If you drive 40 miles in 1 houre, and 120 mils in 3 hours, your first fracton would be and your second fraction would have to be .
Therefore, your answer would be A.  . the direct variation says that: then the equation is of the form is given by: where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in ; we have; divide both sides by 2 we get;  check:

put x = -1 and m(x) = -1.5

substitute in the equation:  -1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: step-by-step explanation:   ### Another question on Mathematics Mathematics, 21.06.2019 14:00
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