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attashe74 [19]
4 years ago
15

Each pound of fruit costs $4. Write an expression that shows the total cost of the fruit. Use the variable you identified in que

stion 1. Btw the variable I used was "f".
Mathematics
1 answer:
vovangra [49]4 years ago
6 0

Answer:

$4f

Step-by-step explanation:

Let's assume f represents the number of pounds of fruit.

We need to multiply the number of pounds of fruit by the cost per pound.

This is $f * 4, or in a simpler form, $4f.

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find the coordinates of the point p that divides the direct line segment from A to B in the given ratio A ( -9,5) B (15,-11)7 to
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\bf ~~~~~~~~~~~~\textit{internal division of a line segment}
\\\\\\
A(-9,5)\qquad B(15,-11)\qquad
\qquad \stackrel{\textit{ratio from A to B}}{7:1}
\\\\\\
\cfrac{A\underline{p}}{\underline{p} B} = \cfrac{7}{1}\implies \cfrac{A}{B} = \cfrac{7}{1}\implies 1A=7B\implies 1(-9,5)=7(15,-11)\\\\
-------------------------------

\bf p=\left(\cfrac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \cfrac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)\\\\
-------------------------------\\\\
p=\left(\cfrac{(1\cdot -9)+(7\cdot 15)}{7+1}\quad ,\quad \cfrac{(1\cdot 5)+(7\cdot -11)}{7+1}\right)
\\\\\\
p=\left(\cfrac{-9+105}{8}~~,~~\cfrac{5-77}{8}  \right)\implies p=\left( \cfrac{96}{8}~~,~~\cfrac{-72}{8} \right)
\\\\\\
p=(12~,~-9)
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