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allochka39001 [22]
3 years ago
9

A wallet contains $40 has three times as many $1 notes as $5 notes. find the number of each kind

Mathematics
1 answer:
Lunna [17]3 years ago
3 0
X=one dollar
y=5 dollar

x=3y
1x+5y=40
3y+5y=40
8y=40
divide 8
y=5
x=3y
x=3(5)
x=15

15 one dollars
5 five dollars
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Step-by-step explanation:

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The perimeter is the total length of all the sides. The length of the horizontal sides is 8 ft + 10 ft = 18 ft. The length of the slant sides can be found using the Pythagorean theorem. For side length s, we have ...

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