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2 years ago

Is (-4,4) the solution of the system. 4x+5y>-6 and -2x+7y>20

Mathematics

1 answer:

nikklg [1K]2 years ago

7 0

Answer:

It is a solution, one of an infinite number of solutions.

Step-by-step explanation:

You can check to see if the given point is in the solution set:

4(-4) +5(4) = -16 +20 = 4 > -6 . . . . yes

-2(-4) +7(4) = 8 +28 = 36 > 20 . . . yes

The offered point satisfies both inequalities, so is in the solution set. It is not the solution, but is one of an infinite number of solutions.

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A certain high school reported that only 74% of its students enroll in a math class during senior year. If

denis-greek [22]

Answer:

550 students are in the school.

Step-by-step explanation:

The way I found my answer was by first turning 74% into a decimal, which is 0.74. Then I divided 407 by 0.74 and I got 550. Therefore, 550 is our answer.

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2 years ago

What is the area of this trapezoid a) 175in b)140in c)129in b)85in

STALIN [3.7K]

Answer:

I would need the picture of the trapezoid to solve for you

Step-by-step explanation:

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2 years ago

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the interior paint color melon madness,is 30% yellow, I used 72 ounces of yellow paint to mix the last batch. How many ounces of

Leona [35]

If the paint is 30% yellow, and you used 72 ounces of yellow, all you have to do is divide 72 by 30% to get the whole amount of ounces of paint made.
72 ÷ 0.30 = 240
In the last batch, you made 240 ounces of melon madness paint.

8 0

3 years ago

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#6 math help fun please?

julsineya [31]

Answer:

mean: 27.6

median: 32

mode: 35

range: 35

Step-by-step explanation:

Definitions:

mean: average

median: middle

mode: the number that comes up the most

range: the difference between the highest and lowest values/numbers

What to do:

mean: you add up all the numbers and then you divide that sum by the amount of numbers there are (I'm not going to do the work because that's a lot of numbers to type out, but you can check your work with my answer).

~answer is 27.6

median: middle number --> 32

mode: the number that comes up the most --> 35

range: 40-5 = 35

4 0

3 years ago

2x+6=76 Show your steps

Gennadij [26K]

Hola I’m Carribbean:)

Answer:

X = 35

Step-by-step explanation:

Subtract 6 from both sides.

2x+6−6=76−6

2x=70

Divide both sides by 2.

$\frac{2x}{2}$ ÷ $\frac{70}{2}$

= 35

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2 years ago

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