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Whitepunk [10]
3 years ago
7

A scale distance of 3 centimeters on a map represents an actual distance of 51 feet.

Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0
In this case, the best way to work this out is to find what 1cm is equal to. In this case, you have to divide 51/3, giving you 17. You know that 17 feet. You can now divide 187/17, giving you 11. Therefore, 11cm is equal to 187 feet. Hope this helps
Vanyuwa [196]3 years ago
7 0
If the distance is 51 feet in 3 cm
if the destance is 187 feet ..?cm 
51 ....3
187...? =3 * 187/51
           =3*3.58
           =10.74 cm (hope it help)
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A person invests $4000 at 2% interest compounded annually for 4 years and then invests the balance (the $4000 plus the interest
faltersainse [42]
\bf \qquad \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 &\$4000\\
r=rate\to 2\%\to \frac{2}{100}\to &0.02\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &4
\end{cases}
\\\\\\
A=4000\left(1+\frac{0.02}{1}\right)^{1\cdot 4}\implies A=4000(1.02)^4\implies A\approx 4329.73

then she turns around and grabs those 4329.73 and put them in an account getting 8% APR I assume, so is annual compounding, for 7 years.

\bf \qquad \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 &\$4329.73\\
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 &7
\end{cases}
\\\\\\
A=4329.73\left(1+\frac{0.08}{1}\right)^{1\cdot 7}\implies A=4329.73(1.08)^7\\\\\\ A\approx 7420.396

add both amounts, and that's her investment for the 11 years.
7 0
3 years ago
Is number 4 correct?
Strike441 [17]

Answer:

sure

Step-by-step explanation:

6 0
2 years ago
the bottom of a ladder must be placed 3 feet from a wall the laser is 10 feet long how far above the ground does the ladder touc
kaheart [24]
It would be 7 feet above ground
6 0
3 years ago
10 POINTS!! PLEASE HELP Identify which functions have complex roots by selecting the function names on the provided coordinate p
dusya [7]
It's the graphs that don't touch the x-axis have complex roots. Roots are the points where the parabola touches the x-axis. A,C and E all cross/touch the x-axis so they have real roots.


non-real or complex root parabolas are: B, D, F
7 0
3 years ago
Read 2 more answers
An airplane descends 2.5 miles to an elevation of 7.55 miles. Find the elevation of the plane before its descent. The initial el
Zielflug [23.3K]

Answer:

8.75!

Step-by-step explanation:

the answer is x-2.5=6.25

6.25+2.50=8.75

7 0
2 years ago
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