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valkas [14]
3 years ago
14

A school librarian ordered new books for the library. Of the new books ordered 1/3 are science and 2/5 are biography, and the re

st of the books are friction. What fraction of the book ordered are friction?
Mathematics
1 answer:
matrenka [14]3 years ago
8 0

Answer:

4/15

Step-by-step explanation:

1/3=5/15

2/5=6/15

6+5=11

15-11=4

4/15 books a fiction

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29/12 + 23/6 + 11/3 - 5 / 12
Hoochie [10]

Answer:

57/6 or 9 1/2.

Step-by-step explanation:

The lowest common denominator is 12 so we convert the fractions to denominator 12:

29/12 + 23/6 + 11/3 - 5 / 12

= 29/12 + 46/12 + 44/12 - 5/12

= 114/12

= 57/6

or 9 1/2

5 0
3 years ago
It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long
notsponge [240]

Answer:

Step-by-step explanation:

Let the time taken by the john to get to his uncle be x.

Let the time taken by the john to get back from his uncle be y.

So,

x+y=12 ------ equation 1

According to the given velocities:

20x=30y

x=3/2y

Put the value x=3/2y in equation 1

3/2y+y =12

3y+2y/2=12

3y+2y=12*2

5y=24

y=24/5

y=4.8h

Now put the value of y in x=3/2y

x=3/2*4.8

x=14.4/2

x=7.2h ....

6 0
2 years ago
What is the length of leg s of the triangle below? A. 2.2 B. 4 C. 32 D. 4 E. 1.5 F. 16
stiv31 [10]

Answer:

s = 4

Step-by-step explanation:

Note that the triangle has 2 congruent base angles, both 45°

This means the triangle is isosceles with congruent legs, then

s = 4

4 0
3 years ago
What is 7 times ten to the first place
algol [13]

700

Step-by-step explanation:

you just take 10 times it by itself 1 time you get 100 then you times it by 7

7 0
2 years ago
URGENT !!! ANSWER NUMBER 7, right answer will get the brainlest!!!!
ra1l [238]

Answer:

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Step-by-step explanation:

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2 years ago
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