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3 years ago

Help me substitution method define variables

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

$\left \{ {{S=14+L} (I) \atop {S+L=124}(II)} \right.$

<span>Substitute (I) into (II), we have:
</span> $S+L=124$
$(14+L)+L=124$
$14 + 2L = 124$
$2L = 124 - 14$
$2L = 110$
$L = \frac{110}{2}$
$\boxed{L = 55}$

<span>Replace (II) in (I), we have:
</span> $S=14+L$
$S = 14+ 55$
$\boxed{S = 69}$

Answer:
each student sell:
Lori = 55 pizzas
Steve = 69 pizzas
<span>

</span>

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Answer:

The width and length of rectangle is 12.728 m

Step-by-step explanation:

Let the length of the rectangle = L

let the width of the rectangle = W

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Answer:

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