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3 years ago

20 POINTS!!!!! BRAINLIEST!!

Mathematics

1 answer:

Masja [62]3 years ago

4 0

Answer:

Probability of people choosing chocolate is 27/65

Step-by-step explanation:

1/3 of Vanilla likes both

Vanilla is 2/3 of Chocolate

Chocolate or Vanilla is 3/5

(2/3x-2/9x) + x = 3/5

4/9x + x = 3/5

x(4/9 + 1) = 3/5

x = 3/5*9/13

x = 27/65

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3 years ago

Alan bought 3 CDs that were each the same price. Including sales tax, he paid a total of $38.70. Each CD had a tax of $1.10. Wha

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Answer:

$11.80

Step-by-step explanation:

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3 years ago

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A survey of a random sample of 1,500 young Americans found that 87% had earned their high school diploma. Based on these results

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Step-by-step explanation:

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The 95% confidence interval for the proportion of young Americans who have earned their high school diploma is (0.853,0.887) .

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4 years ago

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3 years ago

Points P and Q belong to segment AB . If AB = a, AP = 2PQ = 2QB, find the distance: between the midpoints of segments AP and QB

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Answer:

$\frac{a}{8}$

Step-by-step explanation:

AB = a

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AB = AP + PQ + QB

= AP + $\frac{AP}{2}$ + $\frac{AP}{2}$

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And we know QB = $\frac{AP}{2}$

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Now midpoint of AP = $\frac{a}{2}$ × $\frac{1}{2}$ = $\frac{a}{4}$

and midpoint of QB = $\frac{a}{4}$ × $\frac{1}{2}$ = $\frac{a}{8}$

distance between these midpoints = $\frac{a}{4}$ - $\frac{a}{8}$

= $\frac{a}{8}$

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4 years ago

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