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Alchen [17]
3 years ago
5

1. 4/5 x - 3 3/4 x = 2 1/2

Mathematics
1 answer:
ioda3 years ago
8 0
<span>1. 4/5 x - 3 3/4 x = 2 1/2
-2 19/20 x = 2 1/2
x = (2 1/2) / (-2 19/20) = 5/2 / (-59/20) = 5/2 * (-20/59) = -50/59

2. Q - 7 5/6 = 6 1/2
Q = 6 1/2 + 7 5/6 = 14 1/3

3. -1/3 (8 1/7) = -1/3(57/7) = -19/7 = -2 5/7</span>
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Answer:

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Step-by-step explanation:

As you can see, these are all set up in slope intercept form (with a y-intercept of 0). These equations are called "direct variation" because y varies directly with x. If x increases, then y increases as well. If x decreases, then y decreases.

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