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Katen [24]
2 years ago
12

The Roosevelt Branch Library is open daily from 9:00 A.M. until 4:30 P.M., 255 days a year. How many hours in all is the library

open to the public each year?
Mathematics
2 answers:
I am Lyosha [343]2 years ago
4 0
Bfjxncjfnbxjfncnchxnznxid
kramer2 years ago
3 0

Lets look at the hours they are open from. 9 am - 4:30 pm which is 7 and a half hours a day. Now we multiply 7 1/2 by the number of days they are open, which will be 7 1/2 * 255 = 1,912.5. This means that the library is open 1,912 1/2 hours a year.

I hope I've helped! :)

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2 years ago
Base of triangle exceeds the height by 4. If the area is 178.5 square inches, find the length of the base and the height of the
xxMikexx [17]
Area of a triangle:
A= (1/2)(bh)

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A= 178.5 in^{2}
b= h+4 in
h= UNKNOWN ("h")

Plug in our values into the area equation and solve for "h":
A= \frac{1}{2} bh
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357 =  ((h+4)h)
357 =  h^{2} +4h
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0= (h+21)
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Please comment with any further questions! :)

5 0
3 years ago
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