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Lisa [10]
3 years ago
6

The average adult breathes in about 37L of air every 5 minutes. What is the rate of change of volume of air ?

Mathematics
1 answer:
galben [10]3 years ago
8 0
37L/5 min. = 7.4 L/min.
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Two cars traveling toward each other are 250 miles apart. Car a is traveling 15 miles per hour faster than car
Anon25 [30]

Let car  b be travelling at x  mph.  as they are travelling towards each other their speed of approach is (x + x + 15 ) mph.  So we have the equation

speed = distance / time

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Car b travels at 55 mph and car a travels at 70 mph  Answer

3 0
3 years ago
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quester [9]

Answer:

f(g(h(x))) = (sqrt(x) - 1)^4 + 4

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f(x) = x^4 + 4

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A festival charges $3 for child admission and $5 for adult admision. At the end of the festival they have sold 779 tickets for a
lutik1710 [3]

Answer:

562 child tickets were sold

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Step-by-step explanation:

A festival charges $3 for children admission and $5 for adult admission

At the end of the festival they have sold a total number of 779 tickets for $2771

Let x represent the child ticket

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x + y= 779..............equation 1

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From equation 1

x + y = 779

x= 779 -y

Substitute 779-y for x in equation 2

3x + 5y= 2771

3(779-y) + 5y= 2771

2337 - 3y + 5y= 2771

2337 +2y= 2771

2y= 2771 -2337

2y = 434

y = 434/2

y = 217

Substitute 217 for y in equation 1

x + y= 779

x + 217= 779

x = 779-217

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3 years ago
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8 0
3 years ago
Mrs. Miller is planting pumpkin seeds. She
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Answer: 31,755

Step-by-step explanation: You would just multiply 365 by 87 like this.

365 x 87

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365 x 87 = 31,755

4 0
3 years ago
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