1. the scale of a map is 1 in = 19.5 mi map: in actual: 9.5 mi 2. the scale of a map is 7 in = 16 mi map: 4.9 in actual: mi 3. the scale factor for a model is 5 cm = m model : 72.5 cm actual: 165.3 m 4. the scale of a map is 1 in = 9.6 mi map: in actual: 34.7 mi 5. the scale of a map is 1 ft = 9.6 mi map: ft actual: 38.4 mi 6. the scale factor for a model is 5 cm = m model : 22.4 cm actual: 155.2 m 7. the scale of a map is 5 in = 10 mi map: 8.7 in actual: mi 8. the scale of a map is 1 in = 13.5 mi map: in actual: 65.9 mi 9. the scale factor for a model is 5 cm = m model : 61.5 cm actual: 143.2 m 10. the scale factor for a model is 5 cm = m model : 29.7 cm actual: 179.5 m

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

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