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swat32
3 years ago
12

Wriye the mixed number as a fraction 4 1/3

Mathematics
1 answer:
jeyben [28]3 years ago
3 0
A mixed number is a fraction but if you want it as a improper fraction, multiply the denominator by the unit so, 
4*3=12 
add 1 (from the numerator) 
12+1=13  

Your fraction would be 13/3 because the denominator stays the same.  
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locate the point on the line segment A (3,-5) and B (13,-15) given that the point is 4/5 of the way from A to B. Show your work
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Answer:

The coordinates of the point on the line segment between A (3 , -5) and B (13 , -15) given that the point is 4/5 of the way from A to B would be:  (11 , -13)

Step-by-step explanation:

As the line segment has the points:

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  • B(13, -15)

Let (x, y) be the point located on the line segment which is 4/5 of the way from A to B.

Using the formula

x=\frac{x_{1}m_{2}+x_{2}m_{1}}{m_{1}+m_{2}}

y=\frac{y_{1}m_{2}+y_{2}m_{1}}{m_{1}+m_{2}}

Here, the point (x , y) divides the line segment having end points (x₁, y₁) and (x₂, y₂) in the ratio m₁ : m₂ from the point (x₁, y₁).

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Thus

m : n = 4 : 1

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<u>Finding x-coordinate:</u>

x=\frac{x_{1}m_{2}+x_{2}m_{1}}{m_{1}+m_{2}}

x=\frac{\left(3\right)\left(1\right)+\left(13\right)\left(4\right)}{4+1}

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

x=\frac{3\cdot \:1+13\cdot \:4}{4+1}

x=\frac{55}{4+1}         ∵ 3\cdot \:1+13\cdot \:4=55

x=\frac{55}{5}

\mathrm{Divide\:the\:numbers:}\:\frac{55}{5}=11

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<u></u>

<u>Finding y-coordinate:</u>

y=\frac{y_{1}m_{2}+y_{2}m_{1}}{m_{1}+m_{2}}

y=\frac{\left(-5\right)\left(1\right)+\left(-15\right)\left(4\right)}{4+1}

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

y=\frac{-5\cdot \:\:1-15\cdot \:\:4}{4+1}

  =\frac{-65}{4+1}            ∵ -5\cdot \:1-15\cdot \:4=-65

  =\frac{-65}{5}

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}

y=-\frac{65}{5}

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Therefore, the coordinates of the point on the line segment between A (3 , -5) and B (13 , -15) given that the point is 4/5 of the way from A to B would be:  (11 , -13)

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