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4 years ago

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If a man earns $200 for his first 40 hours of work in a week and then is paid one and one half times his regular rate for any ad

ditional hours, how many hours must he work to make $230 in a week

1 answer:

Luba_88 [7]4 years ago

5 0

<span>200/40=5 5/2=2.5 2.5+5=7.5 30/7.5 = 4 hours</span>

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Hello Shannonrodrigue. You can solve this by setting up an exponential growth equation.

$A = A_ob^t$
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Now we solve for b
$3600 = 3000b^4$
$\frac{3600}{3000} = \frac{3000b^{4}}{3000}$
$\frac{6}{5} = b^4$
$\sqrt[4]{\frac{6}{5}} = \sqrt[4]{b^4}$
$\sqrt[4]{\frac{6}{5}} = b$

Now that we have found b, we can use the equation $A = 3000b^t$ to predict how many bacteria will be present after 10 hours.
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3 years ago

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3 years ago

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We know, S = n/2 [ a + l ]
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Calculation of n:
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Now, substitute in the expression:
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