3 years ago

What is the solution of x2+x-6/x-7_<0

Mathematics

1 answer:

Katarina [22]3 years ago

5 0

Answer:

x < -3 or 2 < x < 7

Step-by-step explanation:

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Serhud [2]

Answer:

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Step-by-step explanation:

1. Let define p, as the number of pencils bought, and m, as the number of markers bought.

$0.15p+0.30m=7.50$

$p=3m$

3. Substitute p in the first equation to 3m since p=3m as defined.

$0.15(3m) + 0.30m=7.50\\0.45m+0.30m=7.50\\0.75m=7.50\\m=10$

plug m into equation p=3m to find the number of pencils bought

$p=3m=3(10)=30$

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3 years ago

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