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77julia77 [94]
3 years ago
9

Combine the following expressions.

%20-%20c%20%5Csqrt%7Bx%7D%20" id="TexFormula1" title="a \sqrt{x} + b \sqrt{y} - c \sqrt{x} " alt="a \sqrt{x} + b \sqrt{y} - c \sqrt{x} " align="absmiddle" class="latex-formula">

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0
I hope this helps you

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You decide to put $5000 in a savings account to save $6000 down payment on a new car. If the account has an interest rate of 7%
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\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill&\$6000\\ P=\textit{original amount deposited}\dotfill &\$5000\\ r=rate\to 7\%\to \frac{7}{100}\dotfill &0.07\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years \end{cases}

\bf 6000=5000\left(1+\frac{0.07}{12}\right)^{12\cdot t}\implies \cfrac{6000}{5000}\approx (1.0058)^{12t}\implies \cfrac{6}{5}\approx(1.0058)^{12t} \\\\\\ \log\left( \cfrac{6}{5} \right)\approx \log[(1.0058)^{12t}]\implies \log\left( \cfrac{6}{5} \right)\approx 12t\log(1.0058) \\\\\\ \cfrac{\log\left( \frac{6}{5} \right)}{12\log(1.0058)}\approx t\implies 2.63\approx t\impliedby \textit{about 2 years, 7 months and 16 days}

6 0
3 years ago
Select two ratios that are equivalent to 7: 10
hammer [34]
21:30 and 35: and 50 this is because 7 times 3 is 21, 10 times 3 is 30, and 7 times 5 is 35, and lastly 10 times 5 is 50
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Tyler poured 15 cups of water into 2 equal-sized bottles and filled each bottle. How much water was in each bottle?
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Answer:

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Step-by-step explanation:

If there are 2 bottles and 15 cups then...  

15 ÷ 2 = 7.5  

He poured 7.5 cups of water in each bottle.

diagram?? maybe you could do this...

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36 * 6 = 216in²
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