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Mademuasel [1]
3 years ago
11

X^2+9x+20 divided by x+5

Mathematics
1 answer:
tangare [24]3 years ago
4 0

Answer:

 x ≠ -5

Step-by-step explanation:

The easiest way is to factor the numerator.

 

x2 + 9x + 20 = (x + 4)(x + 5)

 

Then

 

(x2 + 9x + 20)/(x + 5) = (x + 4)(x + 5) / (x + 5) = x + 4,

 

with the restriction that x ≠ -5

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Analyze tables use the table that shows the percents of blood types of 145 donors during a recent blood drive
Alenkinab [10]

Answer:

a. 16

b. 80

c. Blood type AB

Step-by-step explanation:

Given:

O = 45%

A = 40%

B = 11%

AB = 4%

Total number of donors = 145

a. No. of donors that had type B blood = \frac{11}{100}*145 = \frac{1,595}{100} = 15.95

Type B blood donors ≈ 16

b. No. of blood donors without blood type O = \frac{40 + 11 + 4}{100}*145 = \frac{55}{100}*145 = \frac{7,975}{100} = 79.75

Those without blood type O ≈ 80

c. Find the number of people that had type AB:

Type AB = \frac{4}{100}*145 = 5.8 ≈ 6. This is less than 10 donors.

Therefore, blood type AB had less than 10 donors.

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3 years ago
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Henry can write 5 pages of his novel in 3 hours. At this rate, how many pages can Henry write in 8 hours?
Anna007 [38]

Step-by-step explanation:

3 hours =5 pages

8 hours =x

Cross multiplying

3x=5×8

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Dividing both sides by 3

3x/3=40/3

x=13.33

To the nearest whole number Henry will write 13 pages in 8 hours

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