Let the amount that the boys sold be x, the amount that girls sold will be 3x. The total will be given by:
x+3x=180
4x=180
solving for x we get:
x=180/4
x=45
Thus, boys sold $45, the girls provided 45*3=$135
G(x) = 3x + 5
y = 3x + 5
3x = y - 5
x = (y - 5)/3
Therefore, g^-1(x) = (x - 5)/3
350000 = 270000(1.05)^n
1.05)^n = 350000/270000 = 1.296296
n = log 1.296296 / log 1.05 = 5.3 years answer
Answer: $1526.28
I = (3634)(0.06)(7)
I = 1526.28
When using percents, make sure to divide it by 100 and use that (0.06 instead of 6 in this problem)
Account 1 : y = 2500(1.078)x
account 2 : y = 2500 + 300x
after the second year a1 exceeds a2
after 2 years, a1 = 5390
after 2 years , a2 = 3100
