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rjkz [21]
3 years ago
8

One package of blackberries costs $3. How many packages of blackberries can you buy for $15?

Mathematics
1 answer:
Lostsunrise [7]3 years ago
5 0

Answer:

5 packages

Step-by-step explanation:

One package of blackberries cost $3

Let x represent the number of packages that will cost $15

1 = $3

x= $15

3x= 15

Divide both sides by the coefficient of x which is 3

3x= 15/3

x= 5

Hence 5 packages of blackberries will cost $15

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A simple random sample of size n=10 is obtained from a population that is normally distributed with a mean of 40 and a standard
Eva8 [605]

Yes, the sampling distribution is normally distributed because the population is normally distributed.

A sampling distribution is a chance distribution of a statistic obtained from a larger variety of samples drawn from a specific populace. The sampling distribution of a given population is the distribution of frequencies of a variety of various outcomes that would probable occur for a statistic of a populace.

A sampling distribution is a probability distribution of a statistic this is obtained via drawing a huge variety of samples from a particular populace. Researchers use sampling distributions so that you can simplify the technique of statistical inference.

Solution :

mean = μ40

standard deviation σ σ= 3

n = 10

μx =  40

σ x = σ√n =  3/√10  = 0.9487

μ x =  4σ\x = 0.9487

σx = 0.9487

Yes, the sampling distribution is normally distributed because the population is normally distributed.

Learn more about sampling distribution here:- brainly.com/question/12892403

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3 0
1 year ago
SIMPLIFY USING THE DISTRIBUTIVE PROPERTY OF RATIONAL NUMBERS<br> 1/5+ (2/5+3/5)
Lemur [1.5K]

Answer:

6/5

Step-by-step explanation:

1/5 + (2/5 + 3/5)

solve for the bracket first

1/5 +(2+3/5)

1/5 + (5/5)

1/5 + 1

1+1*5/5

6/5

another method

1/5 + (2/5 +3/5)

open brackets)

1/5 + 2/5 + 3/5

since their denominator are same u can add their numerator

1+2+3/5

6/5

4 0
2 years ago
A number is randomly selected from {80, 81, 82, 83, 84, 85, 86}.
Ivan
The probability that the number picked is less than 84 p(A) is:
number of possible events with picked number less than 84/ total number of possible events = 4/7
The complement event of A is that event A does not occur. If the picked number is not less than 84 ( this means is greater than 84 or is 84). The probability of the complement event is:1- p(A)=3/7

Solution: B 
6 0
3 years ago
Read 2 more answers
Heidi's hair was 2/3 of a meter long. her grandfather cut off 1/6 of a meter of her hair. how long is heidi's hair now?
Fittoniya [83]
The answer to this is 1/2 of a meter long. 
3 0
3 years ago
Find the product with the exponent in simplest form. Then, identify the values of x and y. 1 1 X 63.64 = 6 Y X = y = ​
Snezhnost [94]

Answer:

x = 7 y = 12

Step-by-step explanation:

4 0
2 years ago
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