2 years ago

What is the solution to the system of equations

Mathematics

1 answer:

BlackZzzverrR [31]2 years ago

3 0

Hello,

Please, see the attaced file.

Thanks.

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at a school number of boys:number of girls = 9:7 . There are 116 more boys than girls. Work out the total number at the school

Westkost [7]

612 Boys and 476 Girls

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2 years ago

The Demand function for a product is given by:

VikaD [51]

Answer:

The average rate of change of Demand between 40 and 175 units sold is of -0.1045.

Step-by-step explanation:

Average rate of change:

The average rate of a function f(x) in an interval [a,b] is given by:

$A = \frac{f(b) - f(a)}{b - a}$

In this question:

$D(q) = -0.0003q^2 - 0.04q + 23.56$

What is the average rate of change of Demand between 40 and 175 units sold?

$a = 40, b = 175$ . So

$D(40) = -0.0003*40^2 - 0.04*40 + 23.56 = 21.48$

$D(175) = -0.0003*175^2 - 0.04*175 + 23.56 = 7.3725$

$A = \frac{f(b) - f(a)}{b - a} = \frac{7.3725 - 21.48}{175 - 40} = -0.1045$

The average rate of change of Demand between 40 and 175 units sold is of -0.1045.

3 0

2 years ago

1. Total selling price: $420,<br> Maine sales tax rate:<br> 5 percent.<br> Find the sales tax.

denpristay [2]

Answer: 21

Step-by-step explanation:

5%x420= 21

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2 years ago

What is four hundred twenty-eight and forty-six hundredths written in standard form? 5th grade

Akimi4 [234]

Answer:

4.2846*10^2

Step-by-step explanation:

428.46

4.2846*10^2 hopefully

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2 years ago

Help gai I need help its a math

dem82 [27]

Answer:

Step-by-step explanation:

Rewriting in slope-intercept form.

x - 2y = 0

Add -x on both sides.

- 2y = 0 - x

Divide both sides by -2.

y = 0/-2 - x/-2

y = 0 - - 1/2x

y = 0 + 1/2x

y = 1/2x + 0

The slope is 1/2, the y-intercept is at (0, 0).

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2 years ago