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GarryVolchara [31]
3 years ago
10

Ace's brother is 9 years older than three times his age. the sum of their ages is 57 .how old is Chris?

Mathematics
1 answer:
Paraphin [41]3 years ago
6 0

Answer:

3x+9=57; Chris is 16 years old

Step-by-step explanation:

3x+9=57

Move the Constant to the right

3x=57-9

Calculate

3×=48

Divide both sides

x= 16

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To eliminate the fraction, multiply by 2 both sides of the equation. This gives,
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Rearranging  the equation,
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Suppose the sequence {an} is arithmetic with a3 = 15, d = -3/2, and an=6 <br> Find n.
EastWind [94]

Answer:

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Step-by-step explanation:

Given:

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