➷ 3x + 7 / 4x + 7 = 4/5
Cross multiply:
5(3x + 7) = 4(4x + 7)
Expand:
15x + 35 = 16x + 28
Subtract 28 from both sides:
15x + 7 = 16x
Subtract 15x from both sides:
x = 7
4(7) = 28
Dom is 28 years old
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Answer:
Option A
Step-by-step explanation:
8
a[n] = 7n - 16
The fifth term is a[5]
a[5] = 7(5) - 16 = 35 - 16 = 19
Answer: C. 19
