The answer is D.
8:200 is equivalent 1:25
(I divided 8 and 200 by 8 to get that.)
1:25 multiplied by 18 is 18:450
They are supplementary angles. They are located on a straight line, and when added together they will add up to 180 degrees.
Answer: y = 0.4x
In fraction form, this is y = (2/5)x
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Explanation:
For each row, divide the y over x values
- Row One: y/x = 0.8/2 = 0.4
- Row Two: y/x = 4/10 = 0.4
- Row Three: y/x = 6/15 = 0.4
- Row Four: y/x = 10/25 = 0.4
We end up with the same thing each time.
Since y/x = 0.4, this rearranges to y = 0.4x
Alternatively, you can write the equation as y = (2/5)x because 2/5 = 0.4
100-20x
x is the number of weeks
100 is the amount you have
20 is your budget
