90 gallons increased by 130%

Mathematics

2 answers:

Alex17521 [72]3 years ago

8 0

Multiply 90 by 1.3

The 1.3 is because 130 is bigger than 100 the .3 is for the 30

ASHA 777 [7]3 years ago

5 0

90 * 1.3 = Answer
Answer = 117 gallons

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Tasya [4]

Let the number of rows be x

rows = x
seats in each row = x + 20

total seats = 1344
x (x + 20) = 1344
x^2 + 20x - 1344 = 0
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x = -48 (rejected, answer cannot be negative) or x = 28

Therefore,
x = 28
x + 20 = 48

Check:
Row = 28
Numbers of seat per row = 28 + 20 = 48
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