Mathematics, 10.09.2020 20:01 taniaorozco

7(r+1)=5r+59
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Answer from: ericka79

To get solution we want to have only one r on the LHS.
7(r+1)=5r+59
7r+7=5r+59 /-5r (subtract 5r both sides)
7r-5r+7=5r-5r+59
2r+7=59 /-7 (subtract 7 both sides)
2r=59-7
2r=52 /:2 (divide both sides by 2)
r=26 - its the answer

Answer from: hardwick744

$7(r+1)=5r+59\\
7r+7=5r+59\\
2r=52\\
r=26$

Answer from: Quest

step-by-step explanation:

i found the life tables for the year 2012.

life table of males at age 30. probability of dying between ages x and x+1

total population:

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old.

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497

Answer from: Quest

3100

step-by-step explanation:

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7(r+1)=5r+59
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