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malfutka [58]
3 years ago
9

HELP!?!?!?! I can't figure this out

Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0

Answer:

So, I believe n/2 may be even and 3n+1 is odd. They succumb to 3n if that helps.

Step-by-step explanation:

I'm not certain on what to do but I hope this helps some what.

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Which pairs in the form x,y are solutions to the equation 7x-5y=28?
Ainat [17]

Answer:

x=4 y=0

Step-by-step explanation:

7(4)-5(0)=28

28-0=28

28=28

6 0
3 years ago
A car uses 7litres of pétrole to coker 28km . How many litres of pétrole does hé use to coker 64km
lions [1.4K]

28/7=4km is car journey covered by car in 1l

64/4=16l

5 0
3 years ago
A t-shirt increased in price by
AVprozaik [17]

Step-by-step explanation:

81×1/4

=20.24

this is the answer

5 0
3 years ago
Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a t
SashulF [63]

Answer:

The true proportion for the population would be between 0.386 and 0,398 (0.392±0.06) in 95% confidence level.

Step-by-step explanation:

Confidence interval for true population proportion can be computed as p±ME where

  • p is the sample proportion ( \frac{98}{250}=0.392)
  • ME is the margin of Error from the mean

and margin of error (ME) can be found using the formula

ME=\frac{z*\sqrt{p*(1-p)}}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • p is the sample proportion ( \frac{98}{250}=0.392)
  • N is the sample size (250)

Using the numbers

ME=\frac{1.96*\sqrt{0.392*0.608}}{\sqrt{250} } ≈ 0.06

Then the true proportion for the population would be p±ME = 0.392±0.06 in 95% confidence level.

6 0
3 years ago
a+solution+of+salt+and+water+contains+75+grams+of+water+per+150+mililiters+of+the+solution.+if+1+mole+of+water+weighs+16+grams,+
bazaltina [42]
A solution of salt and water contain 75 grams of water per 150 millimeters of the solution. If 1 mole of water weight 16 grams, how many moles of water would be present in 30 mil liter of the solution.
Kindly mark as brainliest
5 0
3 years ago
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