Answer:
(a) A = 700×1.015^t
(b) 36.2 years
Step-by-step explanation:
(a) Each year, the account value is multiplied by (1 + 1.5%) = 1.015. Repeated multiplication is signified using an exponent. In t years, when the account has been multiplied by 1.015 t times, the account value will be ...
A = $700×1.015^t
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(b) You want to find t when A=$1200. Logarithms are involved.
1200 = 700×1.015^t . . . . use 1200 for A
1200/700 = 1.015^t . . . . . divide by 700
log(12/7) = t×log(1.015) . . . . . take logarithms
log(12/7)/log(1.015) = t ≈ 36.2 . . . . divide by the coefficient of t
It will take about 36.2 years for the account balance to reach $1200.
Answer:
c
Step-by-step explanation:
Each person would get 1/5 beacuse you would have to divide 5 into 4.
So, if 600 is 25%, that means we do 600*4=2400 600 is 1/4 of 2400.
So the answer is 2400
I hope this helps!
Answer: –4rx –15x^2 + 8r + 26x
Step by step:
= 2x + −15x^2 + 24x + −4rx +8r
= (−4rx) + (–15x^2) + (8r) + (2x+ 24x)
= –4rx + –15x^2 + 8r + 26x
