4 years ago

What does a equal 13/a = 39/45

Mathematics

1 answer:

Firlakuza [10]4 years ago

6 0

Answer:

Step-by-step explanation:

a represents 15

13/a= 39/45

We multiply 13*3 to get the denominator 39 on the right hand side.

So this means if we multiply the numerator by 3, we also multiply the denominator by 3 as well.

So, if 13*3= 39, then what number will give us 45?

To get that number, we divide 3 into 45 to get 15

Therefore a is 15

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