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3 years ago

Please help!! please look at the attached! thank you!

Mathematics

1 answer:

Art [367]3 years ago

5 0

Answer:

See explanation

Step-by-step explanation:

Operations Equations Labels

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$\left\{\begin{array}{l}5x-2y=17\\ \\3x+7y=43\end{array}\right.$ $\begin{array}{l}\text{Equation 1}\\ \\\text{Equation 2}\end{array}$

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Multiply Equation 1 by -3 $-15x+6y=-51$ New Eq. 1

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Multiply Equation 2 by 5 $15x+35y=215$ New Eq. 2

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Add Equations 1 and 2 $(-15x+6y)+(15x+35y)=-51+215\\ \\41y=164$ New Eq. 1

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Divide by 41 $y=4$ y solution

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Substitute y=4 into Equation 2 $3x+7\cdot 4=43\\ \\3x+28=43$ New Equation 2

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Solve for x $3x=43-28\\ \\3x=15\\ \\x=5$ x solution

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Write x and y as coordinates (5,4) Solution to the system

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Megan has $15,000 to invest. She is considering two investment options. Option A pays 3.2% simple interest. Option B pays 4.1% i

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wheee

Compute each option

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simple interest is easy

A=I+P

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so given

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Option B: compound interest

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use your calculator

A=22418.0872024

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Answer:

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= 7A-(I+A+64)

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