Mathematics: What is the constant of proportionality 7=7.26x

What is the constant of proportionality 7=7.26x

xelynncaldera

16.03.2022

9514 1404 393

7.26

Step-by-step explanation:

If your equation is ...

y = 7.26x

the coefficient of x is the constant of proportionality. It is 7.26.

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doggylover8655

10.01.2023

$ 642.228 should be deposited at the end of each month.

Step-by-step explanation:

We know that,

The future value of a car is,

$S=\frac{F[(1+r)^n-1]}{r}$

Where, F is the periodic payment,

r is the rate per period,

n is the number of periods,

Here, S = $ 25000

Annual percentage rate = 5.3 % = 0.053,

Here, the payment is paid monthly,

So, the rate per period,

$r=\frac{0.053}{12}$ (Since, 1 year = 12 months),

Also, the number of years = 3,

Therefore, the number of periods, n = 12 × 3 = 36

$\implies 25000 = \frac{F[(1+\frac{0.053}{12})^{36}-1]}{\frac{0.053}{12}}$

$\implies x = \$ 642.228$

Hence, $ 642.228 should be deposited at the end of each month to reach your goal of $25,000 in 3 years.

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