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serg [7]
3 years ago
9

In November mr lees students read 50 books in December they read 40 books what is the percent increase or decrease in the number

of books they read
Mathematics
2 answers:
Y_Kistochka [10]3 years ago
8 0

Answer:

decresaes 10%

Step-by-step explanation:

raketka [301]3 years ago
7 0

10% decrease is the answer bb :)

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Convert r1,200 billion to million please help me out
Anika [276]
This is just converting billion to million, vice-versa.
1 million = 0.001 billion

1,200 billion = 1,200,000,000,000 
So once it is converted, the answer will be, 
1.2 x 10^15 million.
3 0
3 years ago
A public school in your city has 1710 girls among the 2970 students. What is the ratio of boys to girls in school
Minchanka [31]

Answer:

The simplest answer would just be 14:19

However the unsimplified answer is 1260:1710

3 0
3 years ago
(1 point) In an experiment, a ball is drawn from an urn containing 8 orange balls and 12 yellow balls. If the ball is orange, th
klemol [59]

Answer:

a) 8

b) 12

Step-by-step explanation:

With orange: 2×2×2 = 8

With yellow: 2×2 = 4

Total = 8+4 = 12

3 0
3 years ago
About 19.5 million vehicles crossed the Delaware Water Gap Bridge between New Jersey and Pennsylvania in 2002.
marysya [2.9K]

Answer:

1.95 * 10^7

Step-by-step explanation:

19.5 million

write in standard notation

19500000

convert to scientific notation (by making the number such that the largest digit is in the one's place)

1.95 * 10^7

5 0
3 years ago
Find each angle measure. ( Diagrams are not drawn to scale.)​
irina1246 [14]

Answer:

1-141

2-39

3-141

Step-by-step explanation:

180-39=141

1 and 3 look the same size and 2 looks the same as c (39°) so you jsut fill in for the letters

I'm pretty sure this is right

4 0
3 years ago
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