Use cross products to identify the equation needed to solve this proportion: 5 x = 2 9

Question

Use cross products to identify the equation needed to solve this proportion:

5
x
=
2
9

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niczorrrr 5 years 2021-07-27T11:10:21+00:00 2 Answers 17 views 0

Answers ( )

  1. Sigrid
    0
    2021-07-27T11:11:28+00:00
    Reply

    The answer should be x = 22.5 I did the math and it seem it should be correct

  2. Helga
    0
    2021-07-27T11:11:36+00:00
    Reply

    Answer:

    x=22.5

    Step-by-step explanation:

    We are given the proportion:

    5/x=2/9

    Cross multiply. Multiply the numerator (top number) of the first fraction by the denominator (bottom number) of the second. Then multiply the denominator of the first by the numerator of the second.

    5*9=2*x

    45=2x

    2 and x are being multiplied. The opposite of multiplication is division. Divide both sides by 2. This will cancel out the 2 being multiplied by x, and leave x by itself.

    45/2=2x/2

    45/2=x

    22.5=x

    If we substitute 22.5 in for x, the final proportion will be:

    5/22.5=2/9

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