If x varies directly with y and x = 3.5 when y = 14, find x when y = 18.
1 answer:
Answer:
x = 4.5
Step-by-step explanation:
there's definitely other ways to solve this, but I used a proportion.
Then you can make this equation:
14x = 3.5 * 18
I solved for it and got 4.5 .
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Hope it helps!
- Parallel lines have the same slope but different y intercepts.
- turn x-y=7 into slope intercept form by isolating y which would be -y=-x+7
- divide the equation by -1 in order to make y positive and you get y=x-7
- So rewrite the equation with the same slope but this time solving for b
- y=x+b
- plug in your coordinates
- 0=1+b
- subtract 1 from both sides
- -1=b
- so your equation would be
- y=x-1
