If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y whenx is 112 o y- (11) o

Question

If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y whenx is 112
o y- (11)
o y 10 (11)
y- (1826
o x-1916

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Ruby 1 day 2021-09-13T13:29:06+00:00 1 Answer 0

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    2021-09-13T13:30:43+00:00

    The expression that can be used to find the value of y when x is 112 is

    y= 3.6*112

    Step-by-step explanation:

    We are given that y varies directly with x, and y=18 when x = 5.

    We need to find the expression used to find the value of y when x = 112

    When y varies with x, it means:

    y ∝ x

    y= k x

    where k is constant of proportionality.

    if y= 18 and x = 5, then finding k:

    y = k x

    18= k*5

    k= 18/5

    k= 3.6

    So, value of k is: 3.6

    Finding expression for y when x = 112

    y= k x

    k= 3.6 and y = 112

    y= 3.6*112

    So, the expression that can be used to find the value of y when x is 112 is

    y= 3.6*112

    Keywords: Direct Variation


    Learn more about Direct Variation at:

    • brainly.com/question/10708697
    • brainly.com/question/2495851

    #learnwithBrainly

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