What is the point-slope form of a line that has a slope of 3 and passes through point (1, 4)?

a survey was taken of children between the ages 7 and 12. let A be the event that the person rides the bus to school, and let B

galben [10]

Answer:

The statement is true about whether A and B are independent eventa is fourth option:

A and B are not independent events because P(A/B)=0.375 and P(A)=0.25

Step-by-step explanation:

Let A be the event that the person rides the bus to school, then:

P(A)=75/300

P(A)=0.25

Let B be the event that the person has 3 or more siblings, then:

P(B)=24/300

P(B)=0.25

P(A/B)=9/24

P(A/B)=0.375

Like P(A/B)=0.375 is different to P(A)=0.25 the events are not independent

Answer. Fourth option:

A and B are not independent events because P(A/B)=0.375 and P(A)=0.25

8 0

3 years ago

Read 2 more answers

A school holds classes from 8:00 A.M to 2:00 P.M. For what percent of 24-hour day does this school hold classes?

lesya [120]

Answer:

25%

Step-by-step explanation:

So first we need to find out how many hours the school has class. Its 4 hours from 8 to noon, then another 2 from noon to 2. This means the school has class 6 hours a day.

Now we need to figure out the percent. we need to have hours of school over total hours or 6/24

6/24

we can simplify this by dividing both sides by 6

(6/6)/(24/6)=1/4

1/4 is 25%

The school holds class for 25% of the day

5 0

3 years ago

Read 2 more answers

Mr. Jackson drove 40 miles in June. He drove 6 times as many miles in August as he did in June. He drove 2 times as many miles i

Shtirlitz [24]

Answer:

13 1/3 miles

Step-by-step explanation:

40/6=6.66666667: August

6.6 repeating*2=13.3333333: July

Mr. Jackson drove 13 1/3 miles in July

8 0

2 years ago

I will give crown!!

tino4ka555 [31]

Answer:

don't help they are doing a test.

Step-by-step explanation:

3 0

3 years ago

Mark wants to paint a mural. He has 1 1/8 gallons of yellow paint, 1 1/9 gallons of green paint, and 7/8 gallons of blue paint.

tensa zangetsu [6.8K]

Answer:

We have 31/36 gallons of paint left after painting the mural.

Step-by-step explanation:

"Mark wants to paint a mural. He has 1 1/8 gallons of yellow paint, 1 1/9 gallons of green paint, and 7/8 gallons of blue paint. Mark plans to use 3/4 a gallon of each paint color. How many gallons of paint will he have left after painting the mural? Enter your answer as a simplified fraction."

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First change each number into a improper fraction:

1 1/8 = 9/8

1 1/9 = 10/9

7/8 = 7/8

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"If Mark has 9/8 gallons of yellow paint, and he uses 3/4 gallons"

-We have to multiply 3/4 by 2/2 to make the denominators same.

3/4 × 2/2 = 6/8

Now subtract 6/8 from 9/8.

9/8 - 6/8 = 3/8

We will have 3/8 gallons of yellow paint.

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"If Mark uses 10/9 gallons of green paint, and he uses 3/4 gallons"

- We have to multiply 10/9 by 4/4, and 3/4 by 9/9, to get a common denominator.

10/9 × 4/4 = 40/36

3/4 × 9/9 = 27/36

Now subtract 27/36 from 40/36

40/36 - 27/36 = 13/36

We will have 13/36 gallons of green paint.

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"If Mark uses 7/8 gallons of blue paint, and he uses 3/4 gallons"

-We have to multiply 3/4 by 2/2 to get a common denominator.

3/4 × 2/2 = 6/8

Now subtract 6/8 from 7/8.

7/8 - 6/8 = 1/8

We will have 1/8 gallons of yellow paint.

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Now, we will add the leftover amounts of paint to find the answer.

3/8 + 13/36 + 1/8

Add "like terms".

4/8 + 13/36

Simplify 4/8 into 1/2

1/2 + 13/ 36

Multiply 1/2 by 18/18 to get a common denominator.

1/2 × 18/18 = 18/36

Substitute 18/36 as 1/2 in the expression.

18/36 + 13/36 = 31/36

So, We have 31/36 gallons of paint left after painting the mural.

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Hope I helped, Have a nice day!

-Aadi x

6 0

3 years ago