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3 years ago

12

If there are 18 boxes with 12 caculators in each box how many caculators are there in total

1 answer:

Dahasolnce [82]3 years ago

7 0

The number of calculators
= Number of boxes * calculators in each box
=18* 12
= 216 calculators

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klasskru [66]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

Step-by-step explanation:

Considering the system of the equations

$\begin{bmatrix}2x-7y=12\\ -x+15y=-6\end{bmatrix}$

$\mathrm{Isolate}\:x\:\mathrm{for}\:2x-7y=12$

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$\mathrm{Multiply\:both\:sides\:by\:}2$

$-\frac{12+7y}{2}\cdot \:2+15y\cdot \:2=-6\cdot \:2$

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$-12+23y=-12$

$-12+23y+12=-12+12$

$23y=0$

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$\frac{23y}{23}=\frac{0}{23}$

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$x=\frac{12+7\cdot \:0}{2}$

$x=\frac{12}{2}$

$x=6$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

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