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Ivenika [448]
3 years ago
8

Solve the system of equations y = x + 7 and 2x + y = 10 using a graphical method. SOMEONE PLEASE HELP MEEEEEE!!!!!

Mathematics
2 answers:
sammy [17]3 years ago
8 0

The answer to this question is B, (1, 8).

Hope this helped!

yKpoI14uk [10]3 years ago
5 0

Answer:

B). (1,8)

Step-by-step explanation:

You can build graphical using both equation

  1. y=x+7
  2. y=-2x+10

1. When y=0, so x=-7 and when x=0, so y=7

2. When y=0, so x=5 and when x=0, so y=10  

So in the image graphic 1 is red and graphic 2 is blue and you can see they cross at (1,8)

To check

1=2 so, x+7=-2x+10 \\ 3x=3 \\ x=1

Replacing:

1. y=1+7=8 and 2. y= -2*1 +10=8

So (1,8)

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Answer:

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Step-by-step explanation:

We have this function and let's derive it in terms of x.

y =x^2/In x

Dy/Dx=(x^2/In x)'=2/lnx *(x^2)'-(x^2/In x)'=> 2 x *ln ( x ) − x *ln ^2 ( x ) =x ( 2 ln ( x ) − 1 )/ ln ^2 ( x)

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3 years ago
10 out of every 65 students order pizza for lunch. There are 416 students at her school. How many students will eat pizza at her
Studentka2010 [4]

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Step-by-step explanation:

First, you divide 416 by 65. This gets you 6.4. But it's not 1 in 65 eating pizza, it's 10 out of 65, so then you multiply 6.4 by 10, getting 64.

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3 years ago
Subtract --4x2 + 3x - 7 from 8x2 + 2x - 3
r-ruslan [8.4K]

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5 0
3 years ago
(1/8 + 3/12) x (1 1/6-1/2)
aivan3 [116]

Answer:

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Step-by-step explanation:

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Using bodmas

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=36/96

Then move to the next bracket

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Bring the two answers together

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5 0
3 years ago
Read 2 more answers
Algebra...George bought 2 identical couches and 3 identical chairs. A couch cost twice as much as a chair. He spent $270 more on
loris [4]

Answer:

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x= couches

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Hope this helps :D

8 0
3 years ago
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