MATHEMATICS MIDDLE SCHOOL

Which of the following questions is UNBIASED ?? A) Is soccer your favorite sport to wash ? B)Do you like watching boring sports or informative on Tv C) Do you like the calm , soothing ocean ? D) do you prefer to exercise or watch television

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Answer 1
Answer: The answer would be D

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Hey, can someone help me with this?

How do I right 0.389 in expanded form

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0.389= (3x1/10)+(8x1/100)+(9x1/1,000=

One-half cup of black beans provides 15% of the potassium you need daily. You must get the remaining 2890 milligrams from other sources.

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Answers:

The amount of potassium from black beans is 510 mg

The total amount of potassium needed daily is 3400 mg


Explanation:

1- getting the total amount of potassium needed daily:

Assume that the total amount needed daily is x

We know that:

We can get 15% of the potassium needs from half a cup of black beans.

This means that:

remaining amount = 100% - 15% = 85%

We are given that the remaining amount is 2890 mg, therefore:

85% x = 2890 mg

0.85x = 2890 mg

x = 3400 mg of potassium


2- getting the amount of potassium in black beans:

We know that:

one half of a cup provides 15% of the daily needs

We have calculated that:

Total daily need = 3400 mg

Therefore:

half a cup would provide = 15% * 3400

half a cup would provide = 0.15 *3400

half a cup would provide = 510 mg of potassium


Hope this helps :)
not 100% sure on what you are asking but i think i got it. If you are looking for the amount of K (potassium) in milligrams then you need to first know that 85%=2890 milligrams. if you divide 2890 by 17 you get 5%=170 mg. multiply this by 3 to get 15%=510 mg. so one half cup of black beans has 510 milligrams of K. the total amount of K needed daily is 510+2890=3400 milligrams or 34 grams

Ending time 10:08 A.M.
Elapsed time 30 minutes.

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The Time started is 9:38
the correct answer is 9:38 AM hoped this helped 

7) Drawing 2 cards that are all 8 from a deck of cards? __________

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ok so a deck has 52 cards

there are 4 suits so there are 4 cards with 8 on them (8 of clubs, hearts, spades, diamonds)

so
probability is
(desired ourcome)/(total possible)
you have 4 chances ouut of 52 for picking a 8 on the first try
on the second try, you have a 3 out of 51 (assuming you picked an 8 first and you didn't replace it)

multiply them since they are dependent on each ohter
4/52 times 3/51=12/2652=1/221

probability is 1/221
thats statistics and probablilities :D hope that helped

I need help!!!!!I'm little bit confused

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Hi! I'm 100% sure I can answer your question. What is the problem that you are confused about?

9 times as much as 7 tenths

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7 tenths means 0.7
we want 9 times as much as 7 tenths. This means that we will multiply the 7 tenths by 9 to get the answer.

This will give us the following result:
0.7 x 9 = 6.3

Therefore: 9 times as much as 7 tenths is 6.3
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