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Alla [95]
2 years ago
6

A farmer in Gervais is raising zebras and elephant. Last week, she bought 15 bags of feed. Zebra feed costs $35 a bag and elepha

nt feed costs $39 a bag. She spent $569. How many bags of each did she buy?
Mathematics
1 answer:
morpeh [17]2 years ago
3 0

Answer:

do 15 x35

Step-by-step explanation:

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Perimeter of rectangle is 48 inches area is 40 inches what are the length of the side
Aloiza [94]
\bf \textit{perimeter of a rectangle}=p=side+side+side+side
\\\\
or\implies p=w+w+l+l\implies p=2w+2l
\\\\
p=2(w+l)\qquad 
\begin{cases}
w=width\\
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------\\
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-----------------------------\\\\
\textit{area of it}=A=w\cdot l\qquad \begin{cases}
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l=length\\
------\\
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\end{cases}\implies 40=wl\\\\
-----------------------------\\\\

\bf thus\qquad 
\begin{cases}
40=2(w+l)\to \frac{40}{2}=w+l\to\frac{40}{2}-l=\boxed{w}
\\\\
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--------------\\
40=\left( \boxed{\frac{40}{2}-l} \right)\cdot l
\end{cases}

solve for "l" to find its length
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