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alexandr1967 [171]
3 years ago
5

A pack of pencils contains 20 pencils. If Trish uses 3/4 of the pack, how many pencils will she use?

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
5 0
20/4 = 5
5X3 = 15

C is your answer
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PLEASE HELP!!!
Art [367]
<h3>Answer: B. About 93%</h3>

You have the correct answer.

=======================================================

Explanation:

Focus solely on the "in anime club" row. We do this because of the phrasing "given the student is in the anime club". We know for a fact that whoever is randomly picked, they are in the anime club. So we don't have to worry about other data values in the other rows.

Divide the value 0.13 which is in the "takes Japanese" column over 0.14, which is in the "total" column.

Basically we're computing P(A|B) = \frac{P(A \cap B)}{P(B)} where A and B represent the events "takes Japanese" and "in anime club" respectively. The upside down U symbol represents intersection to indicate both events are happening at the same time.

So we end up with 0.13/0.14 = 0.92857142857142 which rounds to 0.93, then that converts to 93% when you move the decimal point over to the right two spots.

7 0
3 years ago
What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?
PilotLPTM [1.2K]

Answer:

15

Step-by-step explanation:

5a - 10b = 45

5a - (10×3) = 45

5a - 30 = 45

5a = 45 + 30

5a = 75

a = 15

3 0
3 years ago
for every 5 red cars there are 8 black cars. If there are 24 more black cars than red cars how many total vehicles are there​
NARA [144]

Answer:

15 red cars + 24 black cars = 38

6 0
3 years ago
Read 2 more answers
Dory lives 2.5 miles from school. Jim lives 3.2 kilometers from school. Ely lives 2300 meters from school, and Chris lives 3000
dezoksy [38]

Answer: Ely, Chris, Jim, Dory

Step-by-step explanation:

The distances must be expressed in the same uni.

Let's express the distance in meters.

We know that Dory lives 2.5 miles from school.

Since:

1\ mi = 1.61\ km

The distance  in kilometers is:

(2.5\ mi)(\frac{1.61\ km}{1\ mi})=4.025\ km

Since 1\ km = 1,000\ m

The distance in meters is:

(4.025\ km)(\frac{1,000\ m}{1\ km})=4,025\ m

 Jim lives 3.2 kilometers from school. The distance in meters is:

(3.2\ km)(\frac{1,000\ m}{1\ km})=3,200\ m

Chris lives 3,000 yards from school.

Since:

1\ m = 1.09\ yd

The distance in meters is:

(3,000\ yd)(\frac{1\ m}{1.09\ yd})=2,752.29\ m

Therefore, the order of the students from closest to farthest from school is:

Ely, Chris, Jim, Dory

7 0
3 years ago
Raj adds 4 more layers of 4 unit how many
sweet-ann [11.9K]
I believe the correct answer is 8
7 0
3 years ago
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