3 years ago

With a sample size of 200 adults what is probability that more than 35% have high blood pressure

Mathematics

1 answer:

ikadub [295]3 years ago

4 0

Answer:

Step-by-step explanation:

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What is the answer to this word problem or how would I solve it

USPshnik [31]

Its a simultaneous equation:
lets make "x" the used games and "y" the new ones

4x + 2y = 84
6x + y = 78. (multiply this by 2 to cancel out y)
12x + 2y = 156

so now we subtract them:
12x - 4x = 156 - 84
x = 9
used games cost $9
new games cost 78 - 6(9) = $24

Janet has $120 but she already bought 3 NEW games so:
120 - 3(24) = $48 left

48/9 = how many used ones she can buy = 5. something

she can buy 5 used

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3 years ago

Assume that the mean length of a human pregnancy is 269 days. If 95% of all human pregnancies last between 249 and 289 days, w

o-na [289]

Answer:93% not sure

Step-by-step explanation:

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3 years ago

Use long division to find a repeated decimal equivalency for the fraction 6/9

Sliva [168]

It gets repetitive really fast. The second verse is the same as the first. The result is ...

$\dfrac{6}{9}=0.\overline{6}$