Write an equation for each word problem. Then solve. 1. One more than three times a number is 7.
2. Seven less than one-fourth of a number is -1
3. The quotient of a number and 5, minus 10, is 3.
4. Six less than seven times a number is equal to -20.
5. Fifteen more than half a number is 9.
6. The cost for a music plan is $9.99 plus $0.25 per song you download. If you paid $113.74, how many
songs did you download?
7. Amy has saved $725 for a new guitar and lessons. Her guitar costs $475 and guitar lessons are $25 per
hour. How many hours of lessons can she afford?
8. Trey went to the batting cages to practice hitting. He rented a helmet for $4 and paid $0.75 for each
group of pitches. If he spent a total of $7 at the batting cages, how many groups of pitches did he pay
for?
9. You got $50 for your birthday and decide to spend some on candy. Each candy costs $1.25. Now you
have $35. How many candies did you buy?
10. Sarah won a $1,000 prize. She uses it to buy paintings which each cost 22.50. Now she has $707.50.
How many paintings did she buy?

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Step-by-step explanation:

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Step-by-step explanation:

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step-by-step explanation:

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