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Vladimir79 [104]
3 years ago
6

Solve the proportion below. 9/x=1/2

Mathematics
1 answer:
KiRa [710]3 years ago
6 0

Answer:

X=18

Step-by-step explanation:

\frac{9}{x}  =  \frac{1}{2}  \\ 9 \times 2 = x \times 1 \\ x = 18

Here you have to use cross multiplication

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Inventor A had 630 inventions, 600% more than the number of inventions inventor B had. How many inventions did B have?
skelet666 [1.2K]

Answer:

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Step-by-step explanation:

Find how many inventions Inventor B had by dividing 630 by 6:

630/6

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3 years ago
The principal P is borrowed at a simple interest rate are for a period of time T. Find the loans future value A, or the total am
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Answer:

The total amount due after five years is $57,000.

Step-by-step explanation:

Recall that simple interest is given by the formula:

\displaystyle A=P(1+rt)

Where <em>A</em> is the final amount, <em>P</em> is the principal amount, <em>r</em> is the rate, and <em>t</em> is the time (in years).

Since we are investing a principal amount of $38,000 at a rate of 10.0% for five years, <em>P</em> = 38000, <em>r</em> = 0.1, and <em>t</em> = 5. Substitute:

\displaystyle A=38000(1+(0.1)(5))

Evaluate. Hence:

\displaystyle A=\$ 57,000

The total amount due after five years is $57,000.

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Step-by-step explanation:

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