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MrRa [10]
3 years ago
5

Can you guys please help me

Mathematics
1 answer:
xeze [42]3 years ago
7 0
There is an easy way to find y intercept. I can tell you how and show you the answer

1 {Y Intercept = 3 } [ This is where the line crosses the line going from up to down in the middle. ]

{slope = 2/1 } To find the slope you find a place where the slanted line is perfectly on the graph.:

You then go up. { GO UP FIRST! that will be the number on top. Stop when you notice the slanted line to the right is exactly on the graph. So what i did is started at (-1, 1) Then went up twice. I saw that to the right of me was the slanted line which was exactly on the graph. So I went up twice [2] then went right once [1]

To find your equation you just put y= [ y intercept form ] and your numbers you found.
y=2/1x + 3
Make sure you have x after your slope so you know it is always going up, no matter what number you put inside.

IF YOU WANT ME TO DO THEM ALL COMMENT. I WILL DO THEM ALL WITHOUT EXPLANATION.

** NOTE ** If the line is decreasing from the left. “\”it is negative so the slope will me - you will do that for your next question
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in the factory 25 men working 26 hour can produce 1300 radios . how manny hours must the same group of men work to produce 450 r
Vera_Pavlovna [14]

Answer:

9 hours

Step-by-step explanation:

Since the group of men remains the same, number of hours is proportional to number of radios.

1300/26 = 450/h

h = 26 * 450 / 1300 = 9 hours

6 0
3 years ago
Solve for x and y simultaneously <br><br>Pls help me ​
pickupchik [31]

I don't think its possible to do this... you have to have 2 equations

8 0
3 years ago
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The difference of two numbers is 16 the greater number is five less than four times a small number find the two numbers
Elis [28]

Answer:

The numbers are 23 and 7  

Step-by-step explanation:

1. Set up the equations

   Let x = the greater number

  and y = the smaller number. Then

(1) x - y = 16

       4y = 4 times the smaller number and

  4y - 5 = 5 less than 4 times the smaller number. Then

(2)     x = 4y - 5

You have a system of two equations:

\begin{cases}(1) & x - y = 16\\(2) & x = 4y - 5\end{cases}

2. Solve the equations

\begin{array}{lrcll}(3) & 4y - 5 - y & = & 16 &\text{Substituted (2) into (1)}\\& 3y - 5 & = & 16 &\text{Simplified}\\ & 3y & = & 21 &\text{Added 5 to each side}\\(4) &y & = & \mathbf{7} &\text{Divided each side by 3} \\& x - 7 & = & 16 & \text{Substituted (4) into (1)}\\& x& = & \mathbf{23} & \text{Added 7 to each side}\\\end{array}

The larger number is 23; the smaller number is 7.

3. Check

\begin{array}{rclcrcl}23 - 7& = & 16 & \qquad &23&=&4(7) - 5\\16 & = & 16 & \qquad &23& = &28 - 5\\&&& \qquad &23& = &23\\\end{array}

OK.

3 0
3 years ago
Can u guys plz help me it's timed
mina [271]

Answer: 38

Step-by-step explanation:

5 0
3 years ago
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A produce store sold 63 red apples. If the ratio of red apples to green apples sold was 7:2, what is the combined amount of red
Elena-2011 [213]
7/2 = 63/g..7 red apples to 2 green apples = 63 red apples to g green apples
cross multiply
(7)(g) = (2)(63)
7g = 126
g = 126/7
g = 18

so they sold 63 red apples and 18 green apples...for a total of (63 + 18) = 81 apples sold
6 0
3 years ago
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