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alexgriva [62]
2 years ago
6

Help urgently need help ​

Mathematics
2 answers:
Marianna [84]2 years ago
8 0

Answer:

y = \frac{8}{7}x -\frac{23}{7}

Step-by-step explanation:

You are changing this to the slope-intercept form of a line.

y = mx + b

8x -7y = 23  Subtract 8x from both sides of the equation

-7y = -8x + 23  Divide both sides of the equation by -7

y = \frac{-8}{-7}  - \frac{23}{7}  

\frac{-8}{-7} is the same as \frac{8}{7}

y = \frac{8}{7}x - \frac{23}{7}

gogolik [260]2 years ago
6 0

Answer:

y=\dfrac{8}{7}x - \dfrac{23}{7}

Step-by-step explanation:

Rearranging the terms, we get 7y=8x-23. Dividing both sides by 7, we get \dfrac{7y}{7} = \dfrac{8x-23}{7}, so \boxed{y=\dfrac{8}{7}x - \dfrac{23}{7}}

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567 children eating lunch. 323 children milk and 136 drinking orange juice. The rest we're drinking apple juice. How many childr
Elza [17]

Answer:

108 students were drinking apple juice

Step-by-step explanation:

1. Add 323 + 136

2. Whatever that number is subtract it by 567

3. Whatever that is will be the number of students drinking apple juice

4. THE END!!!

7 0
3 years ago
Read 2 more answers
Find average rate of change f(x)=-4x^(2)-3x-4 ; [-1,3]
NeTakaya

The rate of change of the given function at [-1,3] is 5

Further explanation:

Given function is:

f(x) = 4x^2-3x-4

And the interval is:

[-1,3]

In order to find the rate of chnage of function the given function's value is calculated at both points and divided by their difference

The formula is:

Rate\ of\ change= \frac{f(x_2)-f(x_1)}{x_2-x_1}

Here,

x_1 = -1

x_2 = 3

So,

f(-1) = 4(-1)^2-3(-1)-4\\=4(1) +3-4\\=4-1\\=3\\f(3) = 4(3)^2-3(3)-4\\= 4(9)-9-4\\=36-13\\=23

Putting the values in the rate of change formula:

Rate\ of\ change= \frac{23-3}{3-(-1)}\\= \frac{23-3}{3+1}\\=\frac{20}{4} \\=5

The rate of change of the given function at [-1,3] is 5

Keywords: Rate of change, functions

Learn more about functions:

  • brainly.com/question/3225044
  • brainly.com/question/3568205

#LearnwithBrainly

5 0
3 years ago
Select all of the expressions equivalent to 2(x + 9y) + 3(2x - 6y).
stiv31 [10]

Answer:

8x

Step-by-step explanation:

=2(x+9y)+3(2x-6y)

=2x+18y+6x-18y

=2x+6x-0y

=8x

4 0
3 years ago
Sofi has $60. She buys jeans that cost $43.99 on sale. How much money will she have left to buy something at the Christmas bouti
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All you have to do is subtract and it'll leave you with the answer $16.01
Hope this helps!
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4 years ago
Read 2 more answers
How do you solve this
schepotkina [342]
Yes they are equal because lets say the rectangle's area is 14 and if you divide 14 into 2 it will be 7 and 7+7=14
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3 years ago
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