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3 years ago

12x² + 2x² – 30x – 5

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

8 0

Step-by-step explanation:

$12 {x}^{2} + 2 {x}^{2} - 30x - 5 \\ = 14 {x}^{2} - 30x - 5$

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The markup on a restaurant meal is 250%. A meal costs $7.30 to produce. How much will the customer be charged before tax and tip

Brums [2.3K]

x. 250
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7.30 100

cross multiply

100x = 1825

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x = 18.25

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3 years ago

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Answer:

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Step-by-step explanation:

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zvonat [6]

Answer:

y=1/3x-2

Step-by-step explanation:

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3 years ago

1x+11y=55 substitution

STatiana [176]

Answer:

y = -1/11 + 5

Step-by-step explanation:

1x + 11y = 55

-1x -1x

11y = -1x + 55

/11 /11

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Hope this helps!

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2 years ago

Ronald is making hats and scarves for charity. He has enough yarn to make 5 hats and 8 scarves. Takes him 12 hrs to knit a hat,

kari74 [83]

Constraints are simply the subjects of an objective function.

The inequality that represents the constraint is: $12x + 6y \le 20$

Represent the number of hats with x, and the number of scarves with y.

From the question, we have:

He spends 12 hours to knit a hat
He spends 6 hours to knit a scarf

So, the equation of the total time spent is:

$Time = 12x + 6y$

This time spent is not more than 20 hours.

So, the inequality is

$12x + 6y \le 20$

Hence, the inequality that represents the constraint is: $12x + 6y \le 20$