24 students in a class took an algebra test. If 18 students passed the test, what percent passed?

Mathematics

1 answer:

Shalnov [3]2 years ago

3 0

There are 75% students in class who passed the algebra test out of total 24 students.

<h3>What is Percentage?</h3><h3>A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”. </h3>

Here, total number of students in class is 24

students who passed the algebra test is 18

Percentage = Passed student X 100 / Total students

= 18 X 100 /24

= 0.75 X 100

= 75%

Thus, there are 75% students in class who passed the algebra test out of total 24 students.

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Write the equation of the line given points (-4,6) and (-8,10)

Advocard [28]

Answer:

the equation of the line in slope-intercept form is: $y=-x+2$

Step-by-step explanation:

First start by finding the slope of the segment that joins those two points using the general formula for the slope of the segments between two points $(x_1,y_1)$ and $(x_2,y_2)$ on the plane:

$Slope=\frac{y_2-y_1}{x_2-x_1}$

Then for our case, calling (-4, 6) = $(x_1,y_1)$ and (-8, 10) = $(x_2,y_2)$ , we have:

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{10-6}{-8-(-4)}\\Slope=\frac{4}{-8+4}\\Slope=\frac{4}{-4}\\Slope= -1$

Now, knowing this, we can find the equation of the line by using the "point-slope" form of a line [of slope "m" and going through the point $(x_0,y_0)$ that tells us: