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kherson [118]
2 years ago
9

If a+b-c=d, if a-b+c=e, then a= ?

Mathematics
1 answer:
yaroslaw [1]2 years ago
4 0
A + b = d+c 
<span>a - b = e - c </span>
The b and c cancel out. 
<span>2a = d+e </span>
<span>a = (d+e)/2 </span>

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3<br> Describe and correct the error a student made when graphing the linear equation y = -3/4x -6
likoan [24]

Answer:

In step 1 the y-intercept should be plotted at (0,-6)

Step-by-step explanation:

Remember that to find the Y intercept in any linear equation you need to use 0 as your X value, this means taking the formula in the y=mx+b form and replacing X with a 0.

Since the formula is y = -3/4x -6

We just insert a 0 insted of the "x"

y = -3/4(0) -6

y=0-6

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So the y-intercept sould be placed in (0,-6)

That's what he did wrong when graphing the equation.

5 0
3 years ago
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ss7ja [257]

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8 0
3 years ago
The base of a triangle is given as 2b. The height of the triangle is given as 5b-7. Find an expressions for the area of the tria
Tcecarenko [31]

Answer:

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4 0
2 years ago
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Alona [7]
Hello : 
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7 0
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ValentinkaMS [17]
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6 0
3 years ago
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