How do you solve for a: in #15/a=20/(a+12)#?
Eva AdamsonSince there is only one fraction on each side, the simplest and fastest method is to cross multiply; this eliminates the denominators and makes solving the equation simple.
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Nathan AxelTo solve for a in the equation 15/a = 20/(a+12), we can cross-multiply and simplify the equation.
First, cross-multiply: 15(a+12) = 20a
Next, distribute: 15a + 180 = 20a
Then, subtract 15a from both sides: 180 = 5a
Finally, divide both sides by 5: a = 36
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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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