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andriy [413]
4 years ago
13

Selena walks from home to school each morning and back home each afternoon.altogether , she walks 2/3 mile each day . How far do

es Selena live from school?
Mathematics
1 answer:
Ivanshal [37]4 years ago
4 0
One days trip of to school from home and back home from school is 2/3 of a mile. We want to know how far it is to school from her house.

To solve this, we simply need to take half of the total distance (2/3)

\frac{2}{3} / 2

Next, we need to turn the 2 into a fraction. Every whole number can be made into a fraction by putting it over 1.

\frac{2}{3} / \frac{2}{1}

Because we are dividing, we need to invert the second fraction and then multiply.

\frac{2}{3} * \frac {1}{2}

Next, we multiply the top of the first fraction by the top of the second and the bottom of the first fraction by the bottom of the second.

\frac{2}{6}

Once you reduce, you get:

\frac{1}{3}
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Help me plz have a blessed day
iren2701 [21]

Answer:

b. (2,0)

Step-by-step explanation:

To find which ordered pair is a solution, we have to replace then into the equation, and the result has to be an identity, that is, 0 = 0.

Equation:

y = -5x + 10

Option a:

(-15,5), so x = -15, y = 5

y = -5x + 10

5 = -5(-15) + 10

5 = 75 + 10

5 = 85

Not an identity, so this ordered pair is not a solution.

Option b:

(2,0), so x = 2, y = 0

y = -5x + 10

0 = -5(2) + 10

0 = -10 + 10

0 = 0

Identity, and thus, the correct answer is given by option b.

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3 years ago
What is the equation of the line that passes through the point (5, 4) and is perpendicular to the line whose equation is 2x + y
konstantin123 [22]

So a line that is perpendicular is a line that intercepts other line at a 90 degree angle.

Slope of perpendicular lines is the opposite sign and the reciprocal of the other.

So if your slope was 2 the perpendicular line would have a slope of -1/2.

So the equation, 2x + y = 3

Can be rewritten as

y= -2x+3

Perpendicular slope: 1/2

Since it intercepts/ passes the coordinates (5,4) it means that those values are included in the function input x and output y.

y=mx+b

4=1/2(5)+b

Solve for b (y intercept)

4-2.5=b

1.5=b

So the equation of the perpendicular is

y=1/2x+3/2 or y=.5x+1.5

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Answer:

its A=4,20, B=8,40

Step-by-step explanation:

you are supposed to do the Y first then the X

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