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Ganezh [65]
3 years ago
10

decide if the following change is an increase or decrease. then determine the percent of change. 48 inches to 30 inches

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0
48 inches to 30 inches is a decrease.
percent decrease = change/original value x 100%
= (48 - 30)/48 x 100%
= 18/48 x 100%
= 37.5% decrease
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Answer:

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Step-by-step explanation:

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12 / t1 = v - 3.........................(2)

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From (1) and (3) , substituting for t2:-

12 / (1.75 - t1) = v + 3 ..................(4)

Subtract:-   (2) - (4):-

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Solving this gives t1 = 1.058 hours

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3 years ago
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Evgen [1.6K]

Answer:

Step-by-step explanation:

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Given:
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