How do you solve #12/7=36/m#?

Answer 1

#color(green)(m=21)#

There are several ways to solve this, but since it was asked under "Rational Equations Using Proportions" let's approach it that way.

Notice that #36# is #12 xx 3#.
If we multiply the Left Side by #3/3# (equivalent to multiplying by #1#) we get: #color(white)("XXX")12/7 xx 3/3 =36/21#
and our original equation #color(white)("XXX")12/7=36/mcolor(white)("XX")#becomes#color(white)("XX")36/21=36/m# with the implication that #color(white)("XXX")m=21#
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Answer 2

To solve the equation 12/7 = 36/m, you can cross-multiply. Multiply 12 by m and 7 by 36. This gives you 12m = 252. To isolate m, divide both sides of the equation by 12. The solution is m = 21.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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