Answer:
A = 120
C = 45
Step-by-step explanation:
(12x + 12) + 15 + (3x + 18) = 180
(12x + 3x) + (12 + 15 + 18) = 180
15x + 45 = 180
15x = 180 - 45
15x = 135
x = 135/15
x = 9
A = 12x + 12 = 12(9) + 12 = 108 + 12 = 120
C = 3x + 18 = 3(9) + 18 = 27 + 18 = 45
Answer:
median is 90
Step-by-step explanation:
75, 88, 92, 100
(88+92)/2 = <u>90</u>
Answer:
6/16
Step-by-step explanation:
12/16-3/8
12/16-6/16
6/16=3/8
The relationship is that one is ten times larger than the other.
Answer:
- starting balance: $636,215.95
- total withdrawals: $1,200,000
- interest withdrawn: $563,784.05
Step-by-step explanation:
a) If we assume the annual withdrawals are at the beginning of the year, we can use the formula for an annuity due to compute the necessary savings.
The principal P that must be invested at rate r for n annual withdrawals of amount A is ...
P = A(1+r)(1 -(1 +r)^-n)/r
P = $60,000(1.08)(1 -1.08^-20)/0.08 = $636,215.95
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b) 20 withdrawals of $60,000 each total ...
20×$60,000 = $1,200,000
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c) The excess over the amount deposited is interest:
$1,200,000 -636,215.95 = $563,784.05
