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MrRissso [65]
3 years ago
15

Need help I dont know what to do​

Mathematics
1 answer:
melomori [17]3 years ago
6 0
5(x+7)=75
x=8

30=3(4x-2)
x=3

5(2x-3)=3(4x-7)
x=-18

-60=5(2x+10)
x=-11
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The probability distribution histogram shows the number of days a book is checked out of the library. What is P(9≤X<18)?​
aleksley [76]

Answer:

p(9\leq{X}\leq{18})=0.6

Step-by-step explanation:

  • The probability distribution provides the probabilities of occurrence of different possible outcomes, in this case we want to know what is the probability that the variable X takes any value between 9 and 18.
  • The probability of occurrence is shown in the vertical axis of the graph. We want to know what is the probability of finding values of X between 9 and 18, then we should add up the probabilities between these two values , which means adding P(9\leq{X}\leq {12})+P(12\leq{X}\leq {15})+P(15\leq{X}\leq {18}) = 0.15+0.30+0.15=0.6
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4 years ago
Find the two numbers the quotient is between. Then estimate the quotient. 75 divided by 4
Liula [17]

Answer:

<em>The quotient will be between 18 and 19.</em>

<em>Estimated quotient will be 18.75</em>

Step-by-step explanation:

The closest number to 75 which is divisible by 4 and <u>less than 75</u> is :  72  and

the closest number to 75 which is divisible by 4 and <u>greater than 75</u> is :   76

Now,  72 \div 4= 18 and 76\div 4= 19

That means, the quotient for (75\div4) will be between 18 and 19.


As, 75 is 1 less than 76, so the quotient will be \frac{1}{4} or 0.25 less than 19.

So, the quotient will be:  19-0.25= 18.75


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