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Tanya [424]
3 years ago
8

If 86 is added to a number the result is 56 less than twice the number, find the exact number, Do not round!

Mathematics
1 answer:
vredina [299]3 years ago
7 0
The number is 142
you first make an equation ;
86+x=2x-56
Add 56 to both sides
142+x=2x
Subtract x from both sides
142=x
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Flauer [41]

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3 years ago
Tobeg says the equation 3x + 2y= 270 and y=4/5x + 20 intersect at the point (50,60) is this true how do you know
il63 [147K]

ANSWER

Yes it is very true


<u>EXPLANATION</u>

If the two equations intersect at (50,60) then this point must satisfy the two equations.


3x+2y=270---(1)

We substitute  (50,60)  in to erquation (1)


3(50)+2(60)=270


150+120=270

270=270




y=\frac{4}{5}x+20 ---(2)


We now substitute  (50,60)  in to erquation (2) also


60=\frac{4}{5}(50)+20


60=40+20


60=60


Since the point satisfy all the two equations, it is true that they intersect at (60,50)




3 0
3 years ago
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Dovator [93]

Answer:

d y=4x + 5

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Is parallel beacause they have the same slope, remember

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3 years ago
How do I make a linear function, what is a linear function?
mixer [17]

Answer:

I have uploaded a picture so you could understand it a little more.

A linear function is when there is a table that gives numbers that represent a function, as shown in the picture.

In the Image, there is a table with a x and y column. And in both columns, there are numbers.

This is what the table looks like in the picture:

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I hope I helped you! God bless :-)

3 0
3 years ago
Two-fifths of a number is -12
notsponge [240]
X=-39 answer

2/5x=-12
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X=-30

6 0
3 years ago
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