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4 years ago

8

fashion for All has jeans on sale for $13. designer pants has jeans on sale for $26. write the total costs of 1,2,3, and 4 pairs

of jeans for each store. then compare the total cost of 4 pairs of jeans.

1 answer:

cestrela7 [59]4 years ago

4 0

Total cost of 1, 2, 3, 4 pairs of jeans per store:

Fashion For All:
13 x 1 = 13
13 x 2 = 26
13 x 3 = 39
13 x 4 = 52

Designer Pants:
26 x 1 = 26
26 x 2 = 52
26 x 3 = 78
26 x 4 = 104

COMPARISON:
Designer Pants = $104, Fashion For All = $52
<em>Compare:
1. we can say that 4 pairs of jeans from designer Pants cost </em><em>52 $ more that 4 pairs of jeans from Fashion For All
2. We can say that the price is twice as high in Designer Pants than in Fashion For All
</em>HOPE IT HELPED!<em>
</em><em />

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option A) Agree, because the solutions are the same is correct.

Step-by-step explanation:

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solving the system

$\begin{bmatrix}2x-3y=-10\\ -x-y=-3\end{bmatrix}$

$\mathrm{Multiply\:}-x-y=-3\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-2x-2y=-6$

$\begin{bmatrix}2x-3y=-10\\ -2x-2y=-6\end{bmatrix}$

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$\begin{bmatrix}2x-3y=-10\\ -5y=-16\end{bmatrix}$

solve -5y for y

$-5y=-16$

Divide both sides by -5

$\frac{-5y}{-5}=\frac{-16}{-5}$

Simplify

$y=\frac{16}{5}$

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As both systems of equations have the same solution.

Therefore, we conclude that Albert is right when says that the two systems of equations shown have the same solutions.

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