First make the denominators the same = 4 5/20 - 3 12/20. Then make them improper fractions= 85/20-72/20= 13/20. Since that is already simplified the answer is 13/20.
Answer:
Answers and methord in the pic
At day 7, the four-day moving average for the price of the stock would be $58.25.
<h3>What is the four-day moving average at day 7?</h3>
This can be found as:
= (Day 7 price + Day 6 + Day 5 + Day 4) / Number of days
Solving gives:
= (59 + 55 + 59 + 60) / 4
= 233 / 4
= $58.25
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4(x - 4) + 65 = -3x
4(x) - 4(4) + 65 = -3x
4x - 16 + 65 = -3x
4x + 49 = -3x
- 4x - 4x
49 = -7x
-7 -7
-7 = x