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Fiesta28 [93]
3 years ago
11

the father is 30 years older than his son.after 10 years from now ,the sum of their ages is 64.what are their ages right now

Mathematics
2 answers:
prohojiy [21]3 years ago
7 0
24 the answer is 24 

(just because i dont have enough characters soooooo LOLOLOLOLOL)
aniked [119]3 years ago
4 0
If sons age is x years then fathers = x + 30

after 10 years ,   we have the equation

x + 10 + x + 30 + 10 = 64
2x = 64 - 50 = 14
x = 7

So right now the son is 7 years old and the father is 37.
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8 0
3 years ago
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emmasim [6.3K]

Answer:

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

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Upper bound:

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The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

4 0
3 years ago
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