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3 years ago

If you borrow $100 for 3 years with an annual interest rate of 9% how much will you pay altogether.

Mathematics

2 answers:

arsen [322]3 years ago

3 0

$100(1.09)^3=129.5029$ or $129.50

Hitman42 [59]3 years ago

3 0

Here we have o find simple interest ( SI )

SI = P x R x T / 100
P = $100
R = 9
T = 3

SI = 100 x 9 x 3 / 100
= 2700 / 100
= 27 for the 1st year

For 3 years 27 x 3
= 81
So 181 is what you have to pay altogether.

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3 years ago

Read 2 more answers

Arnie is mixing red and yellow paints to make two different shades of orange. To make 1 cup of dark orange paint, he needs 7 ou

hjlf

Answer:

Arnie has enough red paint

Step-by-step explanation:

step 1

Find out the number of ounces of red paint needed to make 3 cups of dark orange paint

Let

x -----> number of ounces of red paint

y -----> number of ounces of yellow paint

z ----> cups of dark orange

we know that

\frac{x}{z}=\frac{7}{1}\ \frac{ounces\ red\ paint}{cups\ dark\ orange}

cups dark orange

ounces red paint

For z=3 cups

substitute and solve for x

\frac{x}{3}=\frac{7}{1}

x=21\ ounces\ of\ red\ paintx=21 ounces of red paint

step 2

Find out the number of ounces of red paint needed to make 3 cups of light orange paint

Let

x -----> number of ounces of red paint

y -----> number of ounces of yellow paint

z ----> cups of light orange

we know that

\frac{x}{z}=\frac{3}{2}\ \frac{ounces\ red\ paint}{cups\ light\ orange}

cups light orange

ounces red paint

For z=3 cups

substitute and solve for x

\frac{x}{3}=\frac{3}{2}

x=4.5\ ounces\ of\ red\ paintx=4.5 ounces of red paint

step 3

Adds the ounces of red paint

21+4.5=25.5\ ounces\ of\ red\ paint21+4.5=25.5 ounces of red paint

25.5\ ounces < 32\ ounces25.5 ounces<32 ounces

therefore

Arnie has enough red paint

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