3 years ago

450 mistakes in 9 tests. How many mistakes per test?

Mathematics

2 answers:

JulsSmile [24]3 years ago

8 0

Answer:

Step-by-step explanation:

all you have to do is Divide 9 ÷ 450 the answer is 50.

50 mistake per tests.

MAVERICK [17]3 years ago

8 0

Answer:

50 mistakes per test. 450 mistakes divided by 9 tests =50

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how much would $150 invested at 8% interest compounded anually be worth after 13 years? A(t)=P(1+r/n)^

PIT_PIT [208]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$150\\
r=rate\to 8\%\to \frac{8}{100}\to &0.08\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &13
\end{cases}
\\\\\\
A=150\left(1+\frac{0.08}{1}\right)^{1\cdot 13}\implies A=150(1.08)^{13}\implies A\approx 407.9435589$