3 years ago

How do you solve the equation:

Mathematics

1 answer:

Molodets [167]3 years ago

5 0

Copy and paste the answer on quizlet

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Paul left for school at 7:25 AM. He returned home at 3:15 PM. How long was Paul away from home?

Nikitich [7]

7.25 until 8.00 = 35 minutes

8.00 until 3.00 PM = 7 hours

3.00 until 3.15 = 15 minutes

Answer is 7 hours 50 minutes

7 0

3 years ago

Suppose a simple random sample of size n = 1000 is obtained from a population whose size is N = 2,000,000 and whose population p

faltersainse [42]

Answer:

$p(x\geq 520) = 0.0293$

Step-by-step explanation:

Given data:

random sample size n = 1000

Population size is N - 2,000,000

P = 0.49

We know

$\sigma_p = \sqrt{\frac{p*(1-p)}{n}}$

$\sigma_ p = \sqrt{\frac{0.49*(1-0.49)}{1000}} = 0.0158$

Probability for having X =520

sample proportion $\hat p = \frac{520}{1000} = 0.52$

$p(x\geq 520) = P(\hat p\geq)$

$= P(Z\geq \frac{0.52 - 0.49}{0.0158})$

$= P(Z\geq 1.89) = 0.0293$

$p(x\geq 520) = 0.0293$

6 0

3 years ago

Read 2 more answers

Which expression is equal to (−8−3i)+(3+4i)? A. −4 B. −11+7i C. −5+i D. 4

irakobra [83]

-8 +3 =-5

-3i+4i =i

Final answer is -5+i

6 0

3 years ago

Read 2 more answers

33a7b8c-5<br><br> 22a-2b6c-3

Natalija [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

A recipe calls for using 3/4 cup of brown sugar for each 2/3 cup of white sugar. How many cups of brown sugar are used per cup o

nikklg [1K]

3/4 all over 2/3 equal to x/1 cup

So 3/4 / 2/3 =x/1 now you can cross multiple so 3/4*1=3/4 then 2/3*x=2x/3 then you can solve for x.

3/4=2x/3 multiple 3 to both sides so the 3 cancels with the denominator of 2x
9/4=2x then divide by 2 to both sides to get x alone
9/8=x
1.125=x

So for every 1 cup of white sugar you need 1.125 cups of brown sugar.

5 0

2 years ago