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3 years ago

13

bill is in a class of 50 students.40% of the students in the class take the bus to school. How many students do not take the bus

to school.

1 answer:

deff fn [24]3 years ago

8 0

Answer:

30

Step-by-step explanation:

100%-40%=60%

but 50 is half of 100 you half 60% to 30 people

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Find the unknow number 7/12 - ? = 1/6

Anna71 [15]

<span>7/12 - ? = 1/6

7/12 - ? = 2/12

? = 5/12</span>

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2 years ago

Read 2 more answers

An equation of the perpendicular bisector of the line segment with end points (3,0) and (-3,0) is

Norma-Jean [14]

Answer:

$x = 0$

Step-by-step explanation:

Given

$(x_1,y_1) = (3,0)$

$(x_2,y_2) = (-3,0)$

Required

The equation of the perpendicular bisector.

First, calculate the midpoint of the given endpoints

$(x,y) = 0.5(x_1 + x_2, y_1 + y_2)$

$(x,y) = 0.5(3-3, 0+ 0)$

$(x,y) = 0.5(0, 0)$

Open bracket

$(x,y) = (0.5*0, 0.5*0)$

$(x,y) = (0, 0)$

Next, determine the slope of the given endpoints.

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

$m = \frac{0 - 0}{-3- 3}$

$m = \frac{0}{-6}$

$m = 0$

Next, calculate the slope of the perpendicular bisector.

When two lines are perpendicular, the relationship between them is:

$m_2 = -\frac{1}{m_1}$

In this case:

$m = m_1 = 0$

So:

$m_2 = -\frac{1}{0}$

$m_2 = unde\ fined$

Since the slope is $unde\ fined$ , the equation is:

$x = a$

Where:

$(x,y) = (a,b)$

Recall that:

$(x,y) = (0, 0)$

So:

$a = 0$

Hence, the equation is:

$x = 0$

5 0

2 years ago

Solve for n.<br> (8^n)^3 = 8^6<br> n=

pav-90 [236]

Answer:

2

Step-by-step explanation:

$(x^{y})^z{}=x^{y*z}\\8^{3n}=8^6\\n=2$

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2 years ago

What is the ratio of 140:160

levacccp [35]

Answer:

it reduces to 7:8

Step-by-step explanation:

just put it like a fraction like 140/160. it simplifies to 7/8

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2 years ago

B-4/6=b/2 solve for b

DIA [1.3K]

First you cross multiply.

2*(b-4)=6b

Then distribute the 2.

2b-8=6b

Minus 2b from each side.

-8=4b

Divide each side by 4.

-2=b

So -2 is your answer.

8 0

2 years ago