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ziro4ka [17]
3 years ago
15

Solve for the following system of equations using substitution, what is the value of y? 2x 3y=105 x 2y=65

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0
If you are satisfied please like

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Please help me with this question.
Eduardwww [97]

Answer:

the answer is 11.5

Step-by-step explanation:

2x-9=14

2x = 23

x = 11.5

5 0
3 years ago
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Cedric applied the rule rm • RP, 90°(x, y) to figure WXYZ. What mistakes did he make? Check all that apply. He applied the refle
Andrews [41]

Answer:

He applied the reflection to the pre-image first.

He used an incorrect angle of rotation around point P.

Step-by-step explanation:

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3 years ago
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F(x) = 5/(7x-8) What is the inverse of this function?
oee [108]
f(x)=\dfrac{5}{7x-8}\\\\y=\dfrac{5}{7x-8}\iff\dfrac{1}{y}=\dfrac{7x-8}{5}\ \ \ |multiply\ both\ sides\ by\ 5\\\\\dfrac{5}{y}=7x-8\ \ \ |add\ 8\ to\ both\ sides\\\\7x=\dfrac{5}{y}+8\\\\7x=\dfrac{5}{y}+\dfrac{8y}{y}\\\\7x=\dfrac{5+8y}{y}\ \ \ \ |divide\ both\ sides\ by\ 7\\\\x=\dfrac{5+8y}{7y}\\\\Answer:\boxed{f^{-1}(x)=\dfrac{5+8x}{7x}\ other\ form\ f^{-1}(x)=\dfrac{5}{7x}+\dfrac{8}{7}}
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3 years ago
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why do people purge or clean out their financial records instead of keeping every financial document they receive?​
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