X 3 0 4
Y 0 4 -4
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Answer
Let the first no. be 2x
second no. =x
third no. =2x/3
A/Q
2x+x+2x/3=132
11x/3=132
x=36.
Hence the second no. is 36
Answer:
B, g(n) = 50*1.15^n
Step-by-step explanation:
It's a geometric sequence because the money is increasing by a percentage every year.
Let the two ages be j and m, respectively. Then j+m>32.
Solving for Mary's age, we get m > 32 - j. Because j = m + 2, m > 32 - (m+2).
Continue solving for m: Adding m to both sides of this inequality results in
2m > 32 - 2. Then 2m > 30, and m > 15. Mary's age is greater than 15.
The number may be 6 because 6 • 3 = 18, and 2 more than 18 would be 20
