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pshichka [43]
3 years ago
13

Lai Yee and Khadijah have 60 stamps. When Lai Yee gives 5 stamps to Khadijah, the number of Lai Yee's stamps is twice the number

of Khadijah's stamps. How many stamps does each of them have at first? ​
Mathematics
1 answer:
Radda [10]3 years ago
8 0

Answer:

Lai yee : 45

Khadijah : 15

Step-by-step explanation:

Here is the Explanation

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What is the probability that a person chosen at random from this group has brown or green eyes? startfraction 3 over 25 endfract
lianna [129]

Using it's concept, it is found that the probability that a person chosen at random from this group has brown or green eyes is of \frac{13}{25}.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

Researching the problem on the internet, it is found that the group has 20 + 6 + 17 + 7 = 50 people, of which 20 + 6 = 26 have brown or green eyes, hence the probability is given by:

p = 26/50 = 13/25.

More can be learned about probabilities at brainly.com/question/14398287

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7 0
2 years ago
Find the volume of a cylinder with a radius of 2 and a length of 9
Brrunno [24]

Answer:

V = pi 36 units^3

V =113.04 units^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

V = pi ( 2) ^2 *9

V = pi 36

Letting pi = 3.14

V =113.04

3 0
3 years ago
Smallest 7 digit even number
Marrrta [24]

1,000,000, because its the 1st 7 digit number and it happens to be even

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3 years ago
Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a m
LiRa [457]

Answer:

The Zscore for both test is the same

Step-by-step explanation:

Given that :

TEST 1:

score (x) = 75

Mean (m) = 65

Standard deviation (s) = 8

TEST 2:

score (x) = 75

Mean (m) = 70

Standard deviation (s) = 4

USING the relation to obtain the standardized score :

Zscore = (x - m) / s

TEST 1:

Zscore = (75 - 65) / 8

Zscore = 10/8

Zscore = 1.25

TEST 2:

Zscore = (75 - 70) / 4

Zscore = 5/4

Zscore = 1.25

The standardized score for both test is the same.

7 0
3 years ago
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