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2 years ago

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use a ratio box to solve this problem. There were 144 books about mammals in the library. If the ratio of books about mammals to

books about plants was 9 to 8, how many books about plants were in the library?

1 answer:

kherson [118]2 years ago

8 0

Answer:

128

Step-by-step explanation:

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Dogs are inbred for such desirable characteristics as blue eye color, but an unfortunate by-product of such inbreeding can be th

sesenic [268]

Answer:

The probability that the dogs are blue eyed and deaf is 13.02%.

Step-by-step explanation:

We are given the following information in the question:

P(Blue eyes) = 31%

P(Deaf) = 38%

P(Deaf | Blue eyes) = 42%

Formula for conditional probability:

$P( A|B) = \displaystyle\frac{P(A \cap B)}{P(B)}$

Now, let A be the event where the dog is deaf and B be the the event where dog is blue eyed.

$P( \text{ Deaf}|\text{Blue eyes}) = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{P(\text{Blue eyes})}\\\\0.42 = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{0.31}\\\\P( \text{Deaf} \cap \text{Blue eyes}) = 0.42\times 0.31 = 0.1302 = 13.02\%$

Hence, the probability that the dogs are blue eyed and deaf is 13.02%.

6 0

3 years ago

89,659 to the nearest thousand

zubka84 [21]

90,000 is the answer.

8 0

3 years ago

Read 2 more answers

Simplify to create an equivalent expression. 4(-15-3p)-4(-p+5)

Thepotemich [5.8K]

Answer:

- 8p - 80

Step-by-step explanation:

Given

4(- 15 - 3p) - 4(- p + 5) ← distribute both parenthesis

= - 60 - 12p + 4p - 20 ← collect like terms

= - 8p - 80

4 0

3 years ago

Read 2 more answers

Can someone help me with this question

Tasya [4]

I’m pretty sure you add 78+55= 133
180-133=47
so 9x+2=47
subtract 2 from 47 and itself
so 9x=45
divide 9 and 45 by 9
so x=5

8 0

3 years ago

Can someone please help me with these math problems

yuradex [85]

Answer: 138

Step-by-step explanation:

5 0

3 years ago