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3 years ago

−5y=−5 7x+6y=7 Is (5,1) a solution of the system

Mathematics

1 answer:

enot [183]3 years ago

8 0

Answer:no, (5,1) is not a solution for the equation. (1/7,1) will be a solution for the equation.

Step-by-step explanation:

one way to do it is to plug 1 as the y-value into the first equation which does work but when you plug 5 as the x-value and 1 as the y-value in the second equation, it will get you to 41 which does not match so it will not be an equation. the other way to check is to solve by substitution which for the first equation, you divide both side by -5 and get y=1 then substitute y with 1 in the second equation and subtract both side by 6 and get 7x=1 and divide both side by 7 to get 1/7. the y-value match but the x-value don't so (5,1) is not a solution.

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3 years ago

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Step-by-step explanation:

Let age of rick = x

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3 years ago

1. The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. Estimate

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Answer:

D. $2*10^{27} kg$

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

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To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

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jeka57 [31]

Debt is negative dollars, which means she owes at least 25 dollars to the department store

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hope this helps

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−5y=−5 7x+6y=7 ​ Is (5,1) a solution of the system

−5y=−5 7x+6y=7 Is (5,1) a solution of the system