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3 years ago

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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Please help me with this questionnn??

andrew11 [14]

Answer:

C. 7/8

Step-by-step explanation:

3 1/2 = 3.5 and she picked 1/4 of that number. I divided 3.5 by 4 and got 0.875. I then turned that into fraction form for 7/8.

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3 years ago

How many ways can a committee of three people be selected from a group of 20?

Rainbow [258]

Answer:

120

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4 years ago

$20000 is invested in an account that earned 6% p.A. Compounding yearly for 3 years. The interest rate then went up to 8% p.A. F

GuDViN [60]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount \underline{for the first 3 years}} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$20000\\ r=rate\to 6\%\to \frac{6}{100}\dotfill &0.06\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &3 \end{cases}$

$\bf A=20000\left(1+\frac{0.06}{1}\right)^{1\cdot 3}\implies A=20000(1.06)^3\implies \boxed{A=2382.032} \\\\[-0.35em] ~\dotfill\\\\ ~~~~~~ \textit{Compound Interest Earned Amount \underline{for the next 4 years}}$

$\bf A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2382.032\\ r=rate\to 8\%\to \frac{8}{100}\dotfill &0.08\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases}$

$\bf A=2382.032\left(1+\frac{0.08}{1}\right)^{1\cdot 4}\implies A=2382.032(1.08)^4\implies \boxed{A\approx 3240.73} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{amount for this period}}{2382.032+3240.73}\implies 5622.762$

4 0

4 years ago

I need help pleaseeeeeeeee

bixtya [17]

Answer:

The answer is C

6 0

3 years ago

Show how 3 didvided by 8

NeTakaya

3÷8=0.375
is that what you want to know

4 0

4 years ago

Read 2 more answers