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babymother [125]

3 years ago

13

Rocco has a weekly reading schedule, reading for 4 hours per day on some days and 2 hours per day on the other days. He reads a

total of 24 hours in a seven-day week. On how many days does he read for 4 hours?

1 answer:

Ilya [14]3 years ago

7 0

Answer:

hm

Step-by-step explanation:

and then I say no one knows where I I am to find it and then he

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at a particular high school, 42% of the students participate in sports and 25% of the students participate in drama. if 53% of t

baherus [9]

The probability that a student participates in both sports and drama is $0.14$ .

<h3>What is the formula for P(AUB), where A and B are any two events?</h3>

If $A$ and $B$ are any two events, then the probability of the joint event $(A\cup B)$ is given by the following formula: $P(A\cup B)=P(A)+P(B)-P(A\cap B)$

Given that 42% of the students participate in sports and 25% of the students participate in drama and 53% of the students participate in either sports or drama.

Suppose $S$ denotes that "a student participates in sports" and $D$ denotes that "a student participates in drama".
So, we have $P(S)=\frac{42}{100}=0.42$ , $P(D)=\frac{25}{100}=0.25$ , $P(S\cup D)=\frac{53}{100}=0.53$ .

We want to find the probability that a student participates in both sports and drama i.e., we want to find $P(S\cap D)$ .

By the above formula, we obtain:

$P(S\cup D)=P(S)+P(D)-P(S\cap D)\\\Longrightarrow P(S\cap D)=P(S)+P(D)-P(S\cup D)\\\Longrightarrow P(S\cap D)=0.42+0.25-0.53\\\therefore P(S\cap D)=0.14=\frac{14}{100}$

Therefore, the probability that a student participates in both sports and drama is $0.14$ .

To learn more about probability, refer: brainly.com/question/24756209

#SPJ9

6 0

2 years ago

Read 2 more answers

(x - 1)(x + 5) = x² + 4x – 2<br><br> Step by step if possible please

anastassius [24]

Answer:

solve or simplify? if solve, what is x

Step-by-step explanation:

5 0

3 years ago

Scott took out a 4-year car loan for $5,500. He paid back a total of $7,370. What interest rate did he pay for this loan?

elena-14-01-66 [18.8K]

Amount of car loan taken by Scott = $5500
Amount of loan paid back by Scott = $7370
Then
Amount of money paid as interest by Scott = (7370 - 5500) dollars
   = 1870 dollars
Then
Percentage of interest given for the car loan = (1870/5500) * 100
   = 1870/55
   = 34 percent
So Scott had to pay a total interest rate of 34% in the four years.I hope the procedure is simple enough for you to understand and solve future problems.

7 0

3 years ago

3x-1=5x+10. and the X= -5 1/2

irga5000 [103]

Answer:

The answer is 1 or infinite solutions

Step-by-step explanation:

When you plug in the value of -5.5 into the equation, you will eventually end up with -17.5=-17.5, making the answer infinite or 1.

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2 years ago

Compute the price of a 3.8 percent coupon bond with 18 years left to maturity and a market interest rate of 7 percent

zzz [600]

The photo below may help you

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3 years ago