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n200080 [17]
2 years ago
7

ms.amni and mr.blake each ordered supplies for their classroom. the cost of the supplies are pencil cases equals $3 box of crayo

ns equals $4 pack of folders equals $2 .Ms.Amani ordered 7 pencil cases and 9 pack of folders and Mr Blake ordered 9 boxes of crayons What is the difference In the cost off the supplies Ms.Amani and the cost of surprises mr Blake ordered. Show work
Mathematics
1 answer:
frez [133]2 years ago
6 0

Answer:

3

Step-by-step explanation:

do 3×7+9×2=39 (Ms. Amani)

Next do 9×4=36 (Mr.Blake)

39-36=3

Hope this helps!

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Solve the system below using elimination<br> {5x+9y= -10}<br> {7x+10y= -1}
bixtya [17]

∑Hey , jillianwagler ⊃

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Step-by-step explanation:

<u><em>Given~:</em></u>

<em>Solve the system below using elimination</em>

<em>{5x+9y= -10}</em>

<em>{7x+10y= -1}</em>

<u><em>Solve:</em></u>

<u><em></em></u>\begin{bmatrix}5x+9y=-10\\ 7x+10y=-1\end{bmatrix}

Isolate x ( 5x + 9y = -10 ) : \mathrm{x=\frac{-10-9y}{5}}

Substitute: \mathrm{x=\frac{-10-9y}{5}}

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Hence, x=7

Therefore, the solution for \begin{bmatrix}5x+9y=-10\\ 7x+10y=-1\end{bmatrix} are:

x=7,\:y=-5

<u><em>xcookiex12</em></u>

<u><em></em></u>

<em>8/19/2022</em>

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