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Since you already have y isolated on one equation it's easy. Plug in 3x-11 as for for the second equation. Solve and find what x equals. Then plug the x into the first equation to find y. Hope this helps!
From what I can deduce, using the Unit Price is the best way to compare the cost of two different sizes in items. It would depend on the price of the Item per units to justify buying the larger item over the smaller item and the opposite is true as well. I hope this is helpful.
Answer:
Water temperature in an ocean varies inversely to the water’s depth. Between the depths of 250 feet and 500 feet, the formula
T
=
14
,
000
d
gives us the temperature in degrees Fahrenheit at a depth in feet below Earth’s surface. Consider the Atlantic Ocean, which covers 22% of Earth’s surface. At a certain location, at the depth of 500 feet, the temperature may be 28°F.
Answer:
Midpoint is ( Average of x’s, Average of y’s )
1 = (x + 7)/2
2 = x + 7, x = - 5
and - 1 = (y + (-4))/2
so - 2 = y - 4 and y = 2
Pt B = (- 5, 2)
