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alexgriva [62]
3 years ago
8

Tania bought 4 more pounds of pears than Wilma. Together, Tania and Wilma bought 18 pounds of pears.

Mathematics
2 answers:
horrorfan [7]3 years ago
7 0
The equation would be (x+4)+x=18. X stands for the amount of pears Wilma bought, and (x+4) is the amount of pears Tania bought (because she bought four more pounds than Wilma). (X+4)+x=18 2x+4=18 (now you subtract four from both sides) 2x=14 (to get x by itself, divide both sides by 2) X=7 Wilma bought 7 pounds of pears :3
mr Goodwill [35]3 years ago
4 0
Number of pears Tania bought - t
Number of pears Wilma bought - w

t = w + 4
t + w = 18

(w + 4) + w = 18
2w + 4 = 18
2w = 14
w = 7

Wilma bought 7 pounds of pears.

t = (7) + 4
t = 11

Tania bought 11 pounds of pears.
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Answer:

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b) By using y(0) =0 and y'(0)=1 we get the equations

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c)

The Wronskian of the solutions is calculated as the determinant of the following matrix

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By plugging the values of y_1 and

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