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3 years ago

Jeremiah work 5 days a week.if he earned $225 a day, how much does he earn per day?

Mathematics

1 answer:

Naddika [18.5K]3 years ago

7 0

Uh do you mean he earned $225 per week?
If yes, then he earned 45 per day.

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27. The interest rate that doubles a sum in 10 years is<br>a) 12%<br>b) 11%<br>c) 10%<br>d) 9%

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Interest rate of 7%.

Step-by-step explanation:

The compound interest formula is given by:

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

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

In this question:

We want to find t for which $A(t) = 2P$ when $n = 1, t = 10$ . So

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

$2P = P(1 + r)^{10}$

$(1 + r)^10 = 2$

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$1 + r = 1.07$

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3 years ago

Luci cuts a board that is 3/4 yard long into pieces that are 3/8. how many pieces does she cut

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