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juin [17]
3 years ago
15

. A pair of shoes are $98.75,

Mathematics
1 answer:
djyliett [7]3 years ago
8 0

Answer:

a. <u>saletax</u><u> </u>= 98.75

100

<u>5</u><u> </u> = <u> </u><u>9</u><u>8</u><u>.</u><u>7</u><u>5</u>

100 1

we cross multiple

5(1) = 100(98.75)

5 = 100(98.75)

<u> </u><u> </u>divide both side by 5

<u>5</u><u> </u><u> </u>= <u> </u><u>1</u><u>0</u><u>0</u><u>(</u><u>9</u><u>8</u><u>.</u><u>7</u><u>5</u><u>)</u>

5 5

since 100 can divide 5 so we divide them

= 20(98.75)

amount sale tax = 1975

b. 98.75 × 5 =493.75$

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Answer:

We conclude that (4, 2) is NOT a solution to the system of equations.

Step-by-step explanation:

Given the system of equations

y = x - 2

y = 3x + 4

Important Tip:

  • In order to determine whether (4, 2) is a solution to the system of equations or not, we need to solve the system of equations.

Let us solve the system of equations using the elimination method.

\begin{bmatrix}y=x-2\\ y=3x+4\end{bmatrix}

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Subtract 3 from both sides

y+3-3=-2-3

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The solution to the system of equations is:

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Checking the graph

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Answer:

Hey there!

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Let me know if this helps :)

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