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Juli2301 [7.4K]
3 years ago
15

a snail going full speed was taking 1/8 of a minute to move 1/7 of a centimeter. at this rate, how long would it take the snail

to travel a centimeter ?
Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
6 0
(1/7)cm / (1/8)min = (0.14)cm / (0.25)min = 1.1 cm/min

(1cm) / (1.1cm/min) = 0.9 min

So it conclusion, the answer is:

It takes the snail 0.9 minutes to travel 1 centimeter.
Lana71 [14]3 years ago
4 0
It will take 7/8 of a minute because you just multiply 1/8 by 7
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Maureen earned some money doing odd jobs last summer and put it in a savings account that earns 9% interest compounded quarterly
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Answer:

Maureen earned $123.19 doing odd jobs

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 unit year and t is the time in years for which the money is invested or borrowed.

In this question:

Compounded quarterly means that n = 4

10 years, so t = 10

9% interest, so r = 0.09

There is $300.00 in the account, which means that A = 300

How much did Maureen earn doing odd jobs?

This is P.

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

300 = P(1 + \frac{0.09}{4})^{4*10}

(1.0225)^{40}P = 300

P = \frac{300}{(1.0225)^{40}}

P = 123.19

Maureen earned $123.19 doing odd jobs

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Given the function f(x) = 3 (x - 9) + 6 which of the following represents f-1 (x)?
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f^{-1}(x) = \frac{1}{3} x + 7

Step-by-step explanation:

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