anonymous
  • anonymous
If y varies directly with x and y = -7 when x = -1, find x when y = -84. Answer 84 7 -12
Mathematics
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anonymous
  • anonymous
If y varies directly with x and y = -7 when x = -1, find x when y = -84. Answer 84 7 -12
Mathematics
schrodinger
  • schrodinger
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
try dividing 84 by 7 to find the ratio
anonymous
  • anonymous
-12?
anonymous
  • anonymous
-84 divided by -7 equals +12 +12 is your ratio you need to put the x value you know into the ratio -1 times 12 equals -12 so thats the answer but you need to remember to use the ratio to find it otherwise you can end up with the wrong sign or if x had been 2 you would have a completly different answer.

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anonymous
  • anonymous
Write the slope-intercept form of the line which passes through (4, 2) with a slope of 1/2. Answer y = 1/2 x + 2 y = 1/2 x y = 1/2 x + 4

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