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marta [7]
3 years ago
11

Carlos is five years older than twice his sister's age. Carlos is 13.

Mathematics
2 answers:
wolverine [178]3 years ago
4 0
2x+=13x5 is the answer
Aleks [24]3 years ago
4 0
The equation and solution that identifies his sister's age is:

2x + 5 = 13 ; x = 4

Hope it helped :)
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How much simple interest would 1000 earn in 275 days at an interest rate of 4.21%
nikitadnepr [17]
Now, there are 365 (excluding leap years) in a year, so, 275 days is not even a year, but is  275/365 of a year, or 55/73 of a year.

\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$1000\\
r=rate\to 4.21\%\to \frac{4.21}{100}\to &0.0421\\
t=years\to \frac{275}{365}\to &\frac{55}{73}
\end{cases}
\\\\\\
I=1000\cdot 0.0421\cdot \cfrac{55}{73}
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3 years ago
Help please!
wlad13 [49]

Answer:

none of these, it should be 25%

Step-by-step explanation:

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