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2 years ago

How many solutions to the equation 8x=58?

Mathematics

1 answer:

kirill115 [55]2 years ago

7 0

One, and it’s 7.25.

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3 years ago

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mariarad [96]

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2 years ago

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2 years ago

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A car owner buys diesel at rs 7.50, rs 8, rs 8.50 per litre for three successive years. what approximately is the average cost p

alex41 [277]

Answer:

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Amount spent on diesel each year = rs 4000

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2 years ago

Security fence encloses a rectangular area on one side of a park in a city. three sides of fencing are used, since the fourth s

LiRa [457]

Hi,
Let assume a the width and b the length of the rectangular area.
$\left \{ {{2a+b=116} \atop {a*b=1682}} \right. \\\\

 \left \{ {{b=116-2a} \atop {a*(116-2a)=1682}} \right. \\\\

 \left \{ {{b=116-2a} \atop {a^2-58a+841=0}} \right. \\\\

 \left \{ {{b=116-2a} \atop {(a-29)^2=0}} \right. \\\\

 \left \{ {{a=29} \atop {b=116-2*29}} \right. \\\\

 \left \{ {{a=29} \atop {b=58}} \right. \\\\






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3 years ago