Respuesta :

Answer:

The correct answer is a = 16.

Step-by-step explanation:

Step 1: Subtract 0.5 from both sides.

0.25a + 0.5 − 0.5 = 4.5 − 0.5

0.25a = 4

Step 2: Divide both sides by 0.25.

0.25a/0.25 = 4/0.25

a = 16

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Answer: 16

Step-by-step explanation:

0.25a+0.5=4.5

Collect like terms

0.25a=4.5-0.5

0.25a=4

Convert 0.25 to fraction

That gives 25/100

25/100=1/4

So we have

1/4×a=4

Cross multiply

a= 4×4

a=16