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ira [324]
2 years ago
9

A librarian knows that 45% of the books currently

Mathematics
1 answer:
Volgvan2 years ago
5 0

Answer:

2772

Step-by-step explanation:

The amount of books that will not be returned are 45%=45/100=9/20, multiplied by 5040. We multiply it by 5040 because 45%(5040)=45%*5040.

45/100*(5040)=9/20*(5040)=9/2*504=9*252=2268, so the answer is 2268, right?

Wrong! 2268 is the amount of books that will NOT be returned on the due date. We need the amount of books that WILL be returned on the due date. So, the real answer is 5040-2268=2772.

So, the answer is \boxed{2772} and we're done!

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PLS HELP ILL GIVE BRAINLIST!
lyudmila [28]

Answer:

8

Step-by-step explanation:

A2+B2=C2

A2+15squared=17squared

A2+225=289

289-225=64

A2=64

64 squared is 8

7 0
2 years ago
Please help me! I'm having trouble solving this! In the △PQR, PQ = 39 in, PR = 17 in, and the height PN = 15 in. Find QR. Consid
Vlad [161]

Answer: 44

Step-by-step explanation:

we will find RN and NQ, then add together to give us RQ.

To find RN;

RP= 17 PN = 15 and RN =?

using pythagoras theorem,

adj^2 = hyp^2 - opp^2

RN^2 = RP^2 - PN^2

?^2 = 17^2 - 15^2

?^2 = 17^2 - 15^2

?^2 = 289 - 225

?^2 = 64

? = √64

? = 8

RN=8

To find NQ,

PN = 15 PQ=39 and NQ=?

using pythagoras theorem

NQ^2 = PQ^2 - PN^2

?^2 = 39^2 - 15^2

?^2 = 1521 - 225

?^2 = 1296

? = √1296

? = 36

NQ= 36

RQ = RN + NQ

RQ= 8 + 36

RQ=44

4 0
3 years ago
Classify a triangle whose side lengths are 8, 16, and 18
icang [17]

Answer:

scalene

Step-by-step explanation:

When all sides aren't equal.

7 0
2 years ago
Which set of numbers could represent the lengths of the sides of a right triangle?
vitfil [10]

in this problem what you are really looking for is which of these sets is a pathagorean triple. That means it will solve the pathagorean theorem. (a sqaured + b squared = c squared) c is always going to be the largest number or the hypotenuse. if you plug all the number sets into the theorem, only one works and that is 7, 24, 25 which is your answer.

4 0
2 years ago
If c – 8 is an odd integer, which of the following could be the value of c?
finlep [7]

Answer:

Since you didn't give me any choices I can tell you that c is ANY ODD NUMBER THAT EXISTS.

Step-by-step explanation:

im smart ツ

7 0
2 years ago
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