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Alexeev081 [22]

3 years ago

12

17. Jenny is saving for a new 4-wheeler. The one she wants will cost her $784 total. She has saved $495 so far. If she is able t

o save $60 per week, how many weeks will it take for her to save at least $784?

1 answer:

Roman55 [17]3 years ago

8 0

Answer:

5 weeks

Step-by-step explanation:

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Hitman42 [59]

$18. \ \ \frac{-1}{x-9}- \frac{-2}{x+7}= \frac{-1(x+7)+2(x-9)}{(x-9)(x+7)}= \frac{-x-7+2x-18}{(x-9)(x+7)}= \frac{x-25}{(x-9)(x+7)}$

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Furkat [3]

Answer:

She has walked <u>7233.6 ft</u>

Step-by-step explanation:

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5280 x 1.37 = 7233.6 ft (or 7234 if rounded to the nearest ft)

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3 years ago

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3 years ago

At the time of her grandson's birth, a grandmother deposits $ 3000 in an account that pays 3 % compounded monthly. What will be

GaryK [48]

Answer:

The value of the account will be $5,628

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=21\ years\\ P=\$3,000\\ r=3\%=3/100=0.03\\n=12$

substitute in the formula above

$A=3,000(1+\frac{0.03}{12})^{12*21}$

$A=3,000(1.0025)^{252}$

$A=\$5,628$

therefore

The value of the account will be $5,628

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4 years ago