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4 years ago

Find 6m if m = 5/13 Please help Leave your answer in fraction form please

Mathematics

1 answer:

gladu [14]4 years ago

3 0

Step-by-step explanation:

or, 6m=5/13

or, m=5/13 ×6m

m=30/13

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40% of the students passed both exams. 80% of the students passed the second exam. how many students (in percent) who passed the

navik [9.2K]

50%. students (in percent) who passed the second exam also passed the first exam.

Let's imagine that there are 100 kids in the teacher's class. We know that 40 of them passed BOTH tests, and 80 passed the second test.

Because if they weren't, they wouldn't have passed the first test and consequently wouldn't have passed both, we can be sure that the group of students who passed BOTH tests is only made up of the 80 who passed the second test.

Thus, both tests were passed by 40 of the 80 pupils who passed the second one:

40/80 = 1/2 = 50%.

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1 year ago

The set of points P(0, 3), Q(2, 0), R(4, -3) are collinear and the line has a slope of _____.

Anon25 [30]

If the points P, Q and R are collinear, then a slope of line PQ and a slope of line QR are equal.

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

PQ → (0, 3), (2, 0).

Substitute:

$m=\dfrac{0-3}{2-0}=\dfrac{-3}{2}=-1.5$

QR → (2, 0), (4, -3).

Substitute:

$m=\dfrac{-3-0}{4-2}=\dfrac{-3}{2}=-1.5$

CORRECT :)

<h3>Answer: m = -1.5.</h3>

8 0

4 years ago

Given the polynomial function below, find F(-1). F(x) = -x ^3 - x ^2 + 1

steposvetlana [31]

Answer:

$f(-1) = 1$

Step-by-step explanation:

Given

f(x) = $-x^{3}-x^{2} +1$

Finding f(-1) means, we have to put -1 in the places of x in the function,

So, putting x=-1 in the function

$f(-1) = (-1)^{3} - (1)^{2} +1$

As the power 3 is odd, the minus will remain the same, while in the 2nd term minus will be eliminated due to even power. So,

=> $-1-1+1$

=> 1

Hence,

$f(-1) = 1$

7 0

3 years ago

what is the equation in slope-intercept form for the line that passes through (3, 7) and is perpendicular to 3x-5x=8

Galina-37 [17]

Answer:

$5x + 3y = 36$

Step-by-step explanation:

First we need to rewrite 3x-5y=8 in slope-intercept form.

$y = \frac{3}{5} x - \frac{8}{5}$

The slope of this line is

$\frac{3}{5}$

The line perpendicular to this line will have a slope that is the negative reciprocal of 3/5, which is

$m = - \frac{5}{3}$

This line passes through (3,7).

The equation is given by:

$y-y_1=m(x-x_1)$

We substitute the point and slope to get:

$y - 7 = - \frac{5}{3} (x - 3)$

We multiply through by 3 to get:

$3y - 21 = - 5(x - 3)$

Expand to obtain:

$3y - 21 = - 5x + 15$

$3y + 5x = 15 + 21$

$5x + 3y = 36$

6 0

3 years ago

We have a part-whole ratio of 2 : 10. How can we represent this ratio as a percent?

madam [21]

Since there’s a 10 multiple both sides by 10 and it gives you 20/100 which is 20%

4 0

2 years ago

Read 2 more answers