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4 years ago

15

at big city air 4,248 students ride mass transit to school if this number is 90 percent of school enrollment then how many stude

nts are enrolled

1 answer:

goldfiish [28.3K]4 years ago

8 0

4,248 times 0.90 equals 3823.2; so 3823.2 students are enrolled.

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Select the THREE equations that this diagram could represent.

Vladimir [108]

<u>Question </u>

Select the three equations that this diagram could represent.

<u> </u>

<u>Answer</u>

<em>Well, we first have to find out what the diagram says.</em>

<em>So what the diagram says is that 18 + 18 + 18 = 54.</em>

<em>Given this information, we have to figure what other answers = 54.</em>

<em>Therefore the answers are </em>

(A) 18 * 3 = 54.

(D) 54/18 = 3

(E) 54/3 =18

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3 years ago

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3 years ago

How long will it take light to travel to Earth from the Sun according to the equation?

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3 years ago

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3 years ago

Algebra 2 Math question Grade 11

Paha777 [63]

Answer:

$\displaystyle y=\frac{4}{5}x+\frac{13}{5}$

Step-by-step explanation:

The equation of the line in slope-intercept form is:

y=mx+b

Where m the slope of the line and b the y-intercept.

When two points are given, it's convenient to calculate the slope first.

Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

The points are (3,5) and (-2,1):

$\displaystyle m=\frac{1-5}{-2-3}=\frac{4}{5}$

The equation is now:

$\displaystyle y=\frac{4}{5}x+b$

To calculate b, we use any of the given points and solve for b. Use (3,5):

$\displaystyle 5=\frac{4}{5}3+b$

Operate:

$\displaystyle 5=\frac{12}{5}+b$

Solve:

$\displaystyle b=5-\frac{12}{5}=\frac{13}{5}$

The required equation of the line is:

$\boxed{\displaystyle y=\frac{4}{5}x+\frac{13}{5}}$

3 0

4 years ago