1. el MVD de dos números es 18. si los dos números suman 252, ¿Cuántos pares de números cumplen dichas condiciones? 2.Halle el valor de dos números, si el mcm de dichos números es 280 y su diferencia es 100.​

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option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

step-by-step explanation:

gym b charges $1.05 less per hour than gym a.