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kozerog [31]
3 years ago
8

Elena's daughter sold 78 boxes of Girl Scout cookies. She was told that this amount represented 20% of the troops sale. How many

boxes did the room sell
Mathematics
1 answer:
Assoli18 [71]3 years ago
5 0
390.

If you use cross multiplication you'll get 20x=7800,
divide both sides by 20
and you have x=390
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The total amount paid on a 35 year loan was $98,000. If the interest rate was 4.1% and compounded monthly, what was the principa
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Answer:

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Step-by-step explanation:

The total amount paid on a 35 year loan was $98,000 at the rate of interest 4.1%

We will calculate Principal amount by this formula

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

Where A = amount (98,000)

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           r = rate of interest 4.1% (0.041)

           n = number of compounding interest monthly (12)

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98,000=P(1+\frac{0.041}{12})^{(12)(35)}

98,000=P(1+0.003416)^{(420)}

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98,000 = P(4.189386)

= 4.189386P = 98,000

P = \frac{98000}{4.189386}

P = 23,392.4494 ≈ $23,392.45

The principal amount was $23,393.45

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