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3 years ago

The numbers 2 , 3 , 5 and x have an average equal to 4. What is x?

1 answer:

5 0

X is equal to 6.

Explanation:

This is a mean question. When identifying mean, you all all of the values up and divide by how many values are present. 2 + 3 + 5 = 10. 10 + x (which is 6) = 16. When you divide 16 by 4 (because 2, 3, 5, and x make 4 present values), you get 4 as the average. Therefore, your answer is x = 6.

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3. Consider the following information.P(Z) = 0.73P(A) = 0.25P(Z and A) = 0.15Part A: Determine P(Z|A).Part B: Determine P(AZ).I

krok68 [10]

Ok, so:

For Part A, we have: P(Z|A)=P(Z and A)/P(A)

And if we replace, we got:

P(Z|A) = (0.15)/(0.25) and this is equal to 0.6.

For Part B, we have: P(A|Z)=P(Z and A)/P(Z)

P(A|Z) = (0.15)/(0.73) and this is equal to 0.205.

4 0

1 year ago

Enter an algebraic expression to model the given context. Give your answer in simplest form.

scoray [572]

Answer: p-0.6p

Step-by-step explanation:

60% = 0.6

Discount is 60% of price p = 0.6p

Original price less discount

p-0.6p

4 0

3 years ago

May someone help me out with this please

lions [1.4K]

To work out 7% of 600, this is what you do
7/100 x 600
this will give you your answer
7% of 600 = 42

7 0

3 years ago

Plsefgrffghttgrewe helppppppppppppppppppppppppppppp

Alborosie

It should be 4 since it is rise over run so it should be 4/1 and that equals positive 4

7 0

2 years ago

Read 2 more answers

An experience bricklayer can construct a small wall in 3 hours. An apprentice can complete the job in 5 hours. Find how long it

Over [174]

Answer:

Step-by-step explanation:

If the bricklayer can construct the wall in its entirety in 3 hours, then he can get 1/3 of the job done in an hour.

If the apprentice can get the whole job done in 5 hours, then he can get 1/5 of the job done in an hour. If they both work together on said job, the equation is

$\frac{1}{3}+\frac{1}{5}=\frac{1}{x}$ and now we solve for x. Multiply everything by the LCM to get rid of the fractions. That would be 15x:

$15x(\frac{1}{3}+\frac{1}{5}=\frac{1}{x})$ and doing that gives us

5x + 3x = 15 and

8x = 15 so

x = 1.875 hours which is 1 7/8 hours which is also 1 hour and 52 1/2 minutes.

3 0

3 years ago