Write the equation of the line with a slope of 1/5 that passes through the point (20,5)
1 answer:
Answer:
Step-by-step explanation:
the general equation of a line is y=mx+c
because the slop is 1/5, the equation of this line would be
with the coordinates (20,5) , take 20=x and 5=y
and substitute these values into the equation above.
you should get:
5= 4 + c
so c = 1
therefore, the equation of the line is:
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Ah, one of my FAVORITES!
1. Take 2 points, ill take (0, 0) and (4, 12)
2. Set them as "1" and "2" so (0, 0) be 1 and (4, 12) be 2.
3.
and insert the equations.
4. You get
which simplifies to 
.
5.
=3
6. Slope = 3
Hope this helps ^^
1. Take 2 points, ill take (0, 0) and (4, 12)
2. Set them as "1" and "2" so (0, 0) be 1 and (4, 12) be 2.
3.
4. You get
5.
6. Slope = 3
Hope this helps ^^
Answer:
4 rolls of blue ribbon,
5 rolls of silver ribbon,
3 rolls of yellow ribbon.
Step-by-step explanation:
We have been given that Mrs Grey is buying decorative ribbon of three different colors: blue, silver, and yellow. Blue ribbon is sold in rolls of 15 meters, silver is sold in rolls of 12 meters, and yellow comes in rolls of 20 meters.
As Mrs. Grey needs to have same length of each ribbon, so we will find the least common multiple of 15, 12 and 20.
Multiples of 15 are: 15, 30, 45, 60, 75, 90,...
Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,...
Multiples of 20 are: 20, 40, 60, 80,100,...
We can see that 60 is the least common multiple of 15, 12 and 20.
Therefore, Mrs. Grey should buy 4 rolls of blue ribbon.
Therefore, Mrs. Grey should buy 5 rolls of silver ribbon.
Therefore, Mrs. Grey should buy 3 rolls of yellow ribbon.