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3 years ago

Parallel line to 2x+3y=6 passing through (6,-3)

Mathematics

1 answer:

MissTica3 years ago

3 0

Answer:

y = (-2/3)x + 1

Step-by-step explanation:

3y = -2x + 6

y = (-2/3)x + 2

y + 3 = (-2/3)(x - 6)

y + 3 = (-2/3)x + 4

y = (-2/3)x + 1

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A coffee Merchant combines coffee costing $6 per pound with coffee costing $3.50 per pound how many pounds of each should be use

levacccp [35]

$\bf \begin{array}{lccclll}
&\stackrel{lb}{amount}&\stackrel{lb}{price}&\stackrel{total}{price}\\
&------&------&------\\
\textit{6 per lb coffee}&x&6&6x\\
\textit{3.5 per lb coffee}&y&3.5&3.5y\\
-------&------&------&------\\
mixture&25&5.25&131.25
\end{array}$

same as before, we add the 1st and 3rd columns, since the mixture is just the sum of the elements above it.

$\bf \begin{cases}
x+y=25\implies \boxed{y}=25-x\\
6x+3.5y=131.25\\
----------\\
6x+3.5\left( \boxed{25-x} \right)=131.25
\end{cases}
\\\\\\
6x+87.5-3.5x=131.25\implies 2.5x=131.25-87.5
\\\\\\
2.5x=43.75\implies x=\cfrac{43.75}{2.5}\implies x=17.5$

how many lbs will it be of the 3.50 per lb coffee? well, y = 25 -x.

3 0

3 years ago

Solve and receive brainlist

Ivenika [448]

Answer:

x = 4

Step-by-step explanation:

2x + 1 = 9

2x = 9 - 1

2x = 8

x = 4

3 0

3 years ago

Read 2 more answers

Please help me!! Thank you

fomenos

Answer:

WXY = 90

XZY = 45

YXZ = 45

WRZ = 90

XWY = 45

4 0

3 years ago

414+486+550 by using convenient combination

ZanzabumX [31]

Answer:

1450

Step-by-step explanation:

this is actually mental math

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3 years ago

Use the percent. proportion to solve 40% of what is 30?

AleksAgata [21]

Answer:

i belive its 75 percent

Step-by-step explanation:

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3 years ago