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3 years ago

What is the value of x in the equation 3x – one-ninthy = 18, when y = 27?

Mathematics

2 answers:

expeople1 [14]3 years ago

8 0

Answer:

x = 7

Step-by-step explanation:

3x-1/9(27) = 18

x = 21/3

coldgirl [10]3 years ago

4 0

Answer:

Step-by-step explanation:

3x- 1/9y = 18

value of x when y is 27

3x- 1/9*27 = 18

3x- 3 = 18

3x = 18 + 3

3x = 21

x= 21/3

x = 7

Hope this helps you!

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3 years ago

Find the savings plan balance after 2 years with an APR of 4% and monthly payments of $250. The balance is $ (Do not round until

alexdok [17]

Answer:

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Step-by-step explanation:

Recall that increasing an amount C in x% is equivalent to multiply it by (1+x/100)

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Month 0 (first payment)

$250

Month 1

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Month 2

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2)$

Month 3

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3)$

Month 24 (2 years)

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24})$

The sum

$1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24}$

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$\frac{1-(12.04/12)^{25}}{1-(12.04/12)}=26.02603071$

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3 years ago

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Is john 16?
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1 year ago