B 3:7
If there are 6 mops, and 14 mops and brooms, you get 6:14, which simplifies to 3:7.
Answer:
if the annual interest rate is 7%, then you need to invest:
present value = future value / (1 + i)ⁿ
- future value = $2,200,000
- i = 7%
- n = 28 years
present value = $2,200,000 / (1 + 7%)²⁸ = $330,884.87
if the interest rate is 15%, the you need to deposit a smaller amount:
present value = future value / (1 + i)ⁿ
- future value = $2,200,000
- i = 15%
- n = 28 years
present value = $2,200,000 / (1 + 15%)²⁸ = $43,942.34
Answer:
No, no it is not.
Step-by-step explanation:
First step : Solve for y in − 2 x + y = − 7.
y = 2 x − 7
Second step : Substitute y = 2 x - 7 into 3 x + 2 y = 10.
7 x − 14 = 10
Solve for x in 7 x - 14 = 10.
x = 24 / 7
Substitute x = 24 / 7 into y = 2 x - 7.
- 1 / 7
That means your answer is.
x = 24 / 7
y = − 1 / 7
The answer is 72
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