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damaskus [11]
2 years ago
8

Marisa can read 18 pages in 20 minutes. At that rate, how many hours will it take her to read an 837-page book?

Mathematics
1 answer:
lilavasa [31]2 years ago
5 0
Use directly proportional.
y=kx
20=18k
k=18/20
k=0.9

y=0.9 x 837
y=753.3

753.3 is minutes so change to hours is
753/60=12.55
12.55+0.30=12.85
12.85=13.25hours

Answer: 13.25hours
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Answer:

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Step-by-step explanation:

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3 years ago
Pleaseeeee helpp me question 2 .
OLga [1]

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it is a function.

If you are doing range and domain, the range is [3] and the domain is [1,2,3,4,5]

Step-by-step explanation: If there are directions above question 1 that apply to question 2, please add them to the comments.

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8 0
3 years ago
Given the quadratic function f(x) = 2x + 5x-12, what is the value of f(-2)?
tino4ka555 [31]

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-26

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6 0
3 years ago
Read 2 more answers
The volume of the prism is 900 cubic centimeters. The height of the prism is 15 centimeters and the height of the triangular bas
NeTakaya
900=(1/2)*b*10*15
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7 0
3 years ago
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About 1/4 of all adults in the United States have type O+ blood. If three randomly selected adults donate blood, find the probab
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Answer:

a) 0.0156

b) 0.4219

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Step-by-step explanation:

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Then the number of adults follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

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P(x =3)\\= \binom{3}{3}(0.25)^3(1-0.25)^0\\= 0.0156

b) None of them is type O+

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c) Two out of the three are type O

P(x =2)\\= \binom{3}{2}(0.25)^2(1-0.25)^1\\= 0.1406

6 0
3 years ago
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