Respuesta :

Answer:

n = 13

Step-by-step explanation:

0.05n + 0.10(n + 3) = 2.25

First expand the terms in the bracket

We have

0.05n + 0.10n + 0.3 = 2.25

Add the like terms

That's

0.15n + 0.3 = 2.25

Subtract 0.3 from both sides

We have

0.15n + 0.3 - 0.3 = 2.25 - 0.3

0.15n = 1.95

Divide both sides by 0.15

That's

[tex] \frac{0.15n}{0.15} = \frac{1.95}{0.15} [/tex]

We have the final answer as

n = 13

Hope this helps you

Answer:

Step-by-step explanation:

0.05n+0.10(n+3)=2.25

0.05n +0.10n +0.3=2.25

0.15n +0.3=2.25

0.15n=2.25-0.3

0.15n= 1.95

0.15      0.15

n=13