NOw:
brother is x
Ria is x+6
14 years ago
brother was x-14
Ria was x+6 - 14 = x - 8
x - 8 = 2(x - 14)
solve for x and you'll know everything
Ria is 6 years older than her brother. Fourteen years ago, she was twice as old as he was. How old is each now?
4 answers
r = b + 6
r - 14 = 2(b - 14)
substituting ... b + 6 - 14 = 2 b - 28
solve for b , then substitute back to find r
r - 14 = 2(b - 14)
substituting ... b + 6 - 14 = 2 b - 28
solve for b , then substitute back to find r
I am in RSM too right now!
We can create a chart.
Present:
brother - x
Ria - x+6
14 years ago:
brother was x-14
Ria was x+6 - 14
According to the second part of the problem, we know that:
x - 8 = 2(x - 14)
After solving the equation, you'll get the answer as: x=20
So, Ria's brother is 20. Since Ria is x+6, then:
Brother=20
Ria=26
Present:
brother - x
Ria - x+6
14 years ago:
brother was x-14
Ria was x+6 - 14
According to the second part of the problem, we know that:
x - 8 = 2(x - 14)
After solving the equation, you'll get the answer as: x=20
So, Ria's brother is 20. Since Ria is x+6, then:
Brother=20
Ria=26
3 answers