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brilliants [131]
3 years ago
10

Henry has twice as many fiction.

Mathematics
1 answer:
Lostsunrise [7]3 years ago
6 0

Let x be the number of non-fiction books. We deduce that the number of fiction books is 2x, since they are twice as much.

Since the difference between the two numbers is 17, we have

2x-x=17\iff x=17

So, Henry has 17 non-fictional and 34 fictional books, for a total of 51 books.

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Evaluate the expression x3+x2 for x=4
Greeley [361]

Answer:

20

Step-by-step explanation:

x3+x2; x =4\\(4)3+(4)2\\12 + 8 =20

5 0
4 years ago
Read 2 more answers
What sum of money amounts to rupees 545 4 at 8% BA in 30 months​
Mars2501 [29]

Answer:

let sum of money be x

amount=rupees5454

rate=8%

time=30 months

convert month into year

30/12=5/2 years

Step-by-step explanation:

interest=p*t*r/100

=x*5*8/100*2

=40x/200

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so to find principal use formula

amount=principal +interest

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therefore ,sum of money(principal)=rupees.4545

Hope this helps u!!

5 0
3 years ago
Lizzie played tennis for 2 2/3 hours. Andrew played tennis for 1 1/3 hours. How much longer did Lizzie play tennis than Andrew?
Scilla [17]
Andrew played for 1 hour and 20 minutes
Lizzie played for 2 hours and 40 minutes
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8 0
3 years ago
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Plsssssss helpppppppp!!!!!!!!!!
Sphinxa [80]
I think it might be x + b square
6 0
3 years ago
The ratio of Sarah's age to Keisha's age is 4:5 this year. Keisha was 12 years old 3 years ago. Find the ratio of Sarah's age to
KiRa [710]
First, we need to find her current age. If she was 12 years old 3 years ago, her current age is 12 + 3 which is 15. If the ratio of Sarah's age to Keisha's age is 4:5 (Sarah's age is the 4 and Keisha's age is the 5).
If we take 15 and divide that by 5 (her ratio), then you get 3. Now multiply 3 by 4 to find Sarah's age. We get 12. Nine years from now, her age is 12 + 9 which is 21.

There is the answer. Sarah's age in 9 years is 21 years old. I hope this helps.
5 0
3 years ago
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