Wholesale price: $12.75 Percent markup: 40%

Mathematics

2 answers:

IRISSAK [1]2 years ago

6 0

The top answer is right

Ilia_Sergeevich [38]2 years ago

4 0

Answer:

17.85

Step-by-step explanation:

12.75 multiplied by .40 = 5.10

5.10 + 12.75 = 17.85

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Interest earned in the amount of $2.75

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3 years ago

Read 2 more answers

Solve both by substitution method (algebra 2) and show work please -2x-7y=22 -7x-5y=-1

Alex17521 [72]

$\bf \begin{cases}
-2x-7y=22\\
-7x-5y=-1
\end{cases}\qquad \textit{let's solve the \underline{second one} for "x"}
\\\\\\
-7x-5y=-1\implies -7x=5y-1\implies x=\cfrac{5y-1}{-7}
\\\\\\
\boxed{x=\cfrac{1-5y}{7}}\impliedby \textit{now, let's substitute it in the \underline{first one}}
\\\\\\$

$\bf -2\left( \frac{1-5y}{7} \right)-7y=22\implies \cfrac{10y-2}{7}-7y=22
\\\\\\
\textit{now, let's multiply both sides by 7, to toss the denominator}
\\\\\\
7\left( \cfrac{10y-2}{7}-7y \right)=7(22)\implies 10y-2-49y=154
\\\\\\
-39y=156\implies y=\cfrac{154}{-39}\implies \boxed{y=-4}
\\\\\\
\textit{now, let's use that in the \underline{first one}}
\\\\\\
-2x-7(-4)=22\implies -2x+28=22\implies 6=2x\implies \cfrac{6}{2}=x
\\\\\\
\boxed{3=x}$

4 0

2 years ago

Find the equation of the line that passes through the point (-2,7) and is perpendicular to the line y= 2/5x-1/5

-BARSIC- [3]

Step-by-step explanation:

ddhdhdhdhdhdddhdshshshhshshhdhhebebeewshehehehjssdjsjdudsshsusjssowossjjjddjdjddjjjs