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guapka [62]
3 years ago
6

Tanya has read 3\4of a book which is390 pages how many pages are in the entire book

Mathematics
2 answers:
larisa86 [58]3 years ago
8 0
390 divide by 3/4 = 390 x 4/3 = 130 x 4 = 520 pages
algol [13]3 years ago
4 0
There are 520'pages in the whole book because if you divide 390 by 3 you get 130 and if you multiply that by 4 you get 520, hope this helps! Please give brainiest answer and say thanks.
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Mr. K cooked down 2 pumpkins yesterday. He did this to make pumpkin pies for Thanksgiving. He was able get 30.5 cups of pumpkin.
Tasya [4]
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6 0
2 years ago
Alice and Bob each have a certain amount of money. If Alice receives $n$ dollars from Bob, then she will have $4$ times as much
oksano4ka [1.4K]

Answer: 31 : 9

Step-by-step explanation:

Assume the following:

Alice's amount = P

Bob's amount = Q

Amount received = n

If Alice receives $n$ dollars from Bob ;then she will have $4$ times as much money as Bob.

P + n = 4(Q - n)

P + n = 4Q - 4n

P = 4Q - 4n - n

P = 4Q - 5n - - - - (1)

If, on the other hand, she gives $n$ dollars to Bob, then she will have $3$ times as much money as Bob

P - n = 3(Q + n)

P - n = 3Q + 3n

P = 3Q + 3n + n

P = 3Q + 4n - - - - - - (2)

Equating both equations - (1) and (2)

4Q - 5n = 3Q + 4n

4Q - 3Q = 4n + 5n

Q = 9n

Express P in terms of n, use either equation (1) or (2)

From equation 2:

P = 3Q + 4n

Substituting Q = 9n

P = 3(9n) + 4n

P = 27n + 4n

P = 31n

Alice's amount = P, Bob's = Q

Ratio = P:Q

31 : 9

5 0
3 years ago
Helllllllllllllllllllllllllllllllllllp
Anna11 [10]
X/4-9=5
x/4=14
x=14/4
x=7/2
x=3.5
3 0
3 years ago
8+2 =<br> +3<br> i need help
Gekata [30.6K]

Answer:

13

Step-by-step explanation:

8+2=10

10+3=13

4 0
3 years ago
Read 2 more answers
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