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ANTONII [103]
3 years ago
5

An electrician charges $40 to come to your house.She also charges $55for each that she works. The electrician charges you total

of$190.How many hours does the electrician work at your house?
Mathematics
1 answer:
shusha [124]3 years ago
5 0

Answer:

Step-by-step explanation:

First, write an equation. 55x+40=190.

X represents the hours the electrician works. The 55 represents the $55 that she charges for each hour she works. The +40 for the $40 that was the price just to come to your house. The 190 is the total cost. Now, solve that equation.

55x+40=190

55x=150

x=2.72727272...

So the answer is 2.727 hours. It can be rounded as needed or turned into a decimal, 2 8/11.

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Solve and check: 3 x2 + 5x + 6 + x − 1 x + 2 = 7 x + 3
vagabundo [1.1K]

Answer:

3x^{2} -2x +5=0

Step-by-step explanation:

Combine liked terms:

3x^{2}+5x+x-1x+6+2=7x+3

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3x^{2}+5x+8=7x+3

Subtract 3: 3x^{2}+5x+8-3=7x+3-3

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Now subtract 7x:

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If you want combine liked terms:

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Hope this helps!

5 0
3 years ago
It would mean a lot.
LUCKY_DIMON [66]
First, subtract y2 - y1 to find the vertical distance. Then, subtract x2 - x1 to find the horizontal distance.

Formula to find distance given two points.

Square root (X2 - X1)^2 + (Y2 - Y1)^2

Xa Ya Xb Yb
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Xa goes into X2 and Xb goes into X1

(3 - (-1))^2

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(-4 - 3)^2

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Square root 65

= 8.06

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The second answer choice.
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Answer:

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3 years ago
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