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Genrish500 [490]

3 years ago

6

Christy spent $500 over her budget on gifts during the holidays. In addition to her regular job, she took a part-time job at the

pharmacy that paid $10 per hour. How many hours will Christy have to work at the pharmacy to pay off the holiday debt?

1 answer:

yulyashka [42]3 years ago

6 0

Christy would have to work 50 hours to pay off her holiday debt. It would be 10 dollars overtime too if you thought about it.

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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?

adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)$

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$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$

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2 years ago

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NARA [144]

14.

1. 7 × 7 = 49
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3 years ago

How many ways can two marbles be chosen from a set of five marbles?<br> 5<br> 10<br> 15<br> 20

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Step-by-step explanation:

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The ratios of the measures of the angles in a triangle is 3:10:7. Find the measure of the smallest angle. Just write the numeric

Burka [1]

Answer to written question:
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Cross multiply
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