Answer: the answer is y=
Step-by-step explanation: the y intercept is where the line hits the y axsis in this case it happens to be 5 REMEMBER the RISE OVER RUN
pick any 2 points in the graph (always Pick the point that intersect the graph to make your life easier)
the points I picked wreally (-2,0) and (0,5) the RISE is going to be +5 and the RUN is going to be 2
( you really have to count slowly and carefully and always check your work i like to use Desmos for these type of questions to check)
Step-by-step explanation:
The amount of money spent on soap that is required to wash one car is
34
40
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Answer:
95%
Step-by-step explanation:
So, we can see on the chart that 78 out of 82 people from ages 18 to 22 use Face.book. So we're trying to find what percentage 78 is of 82:
The first step is to write 78 as a fraction of 82, which is:
78/82
In order to find the simplest form of 78/82 we cancel out the greatest common divisor of 78 and 82, which is 2 :
78/82 = 37/41
Now we just need to convert this fraction to a percentage :
37/41 = 95% (rounded)
So we have the final answer :
78 is 95% of 82
Which means that:
Approximately 95% of people from ages 18 to 22 use Face.book
hope this helps:)
Problem 12: Recognize that 4x+10 and 2y-30 are "vertical angles" and are thus equal to each other. Thus, 4x+10=2y-30. Similarly, 2(y+25) and 13x are vertical angles, so that 2(y+25) = 13x.
Here we have 2 equations in the 2 unknowns x and y.
Rewriting the first equation: 4x-2y=-20. Rewriting the second: 13x-2y=50.
We must solve this system of linear equations simultaneously:
4x - 2y = -20 or -4x + 2y = 20
13x - 2y = 50 13x - 2y = 50
---------------------
9x = 70
x = 70/9
Use either of the given equations to find the value of y, given that x = 70/9.
13x - 2y = 50
13(70)
---------- - 2y = 50 gives us 2y = 50 + 13(70)/9, or 2y = 50 + 101.11
9 = 151.11
So y = 75.5
Review: Recognize vertical angles when you see them. A pair of vertical angles are equal to one another.
