Question

http://prntscr.com/m9hhpz

Answer 1

@Vocaloid

Answer 2

the independent variable (in this case, time) should only be 1 unit

so you would want to find the $$$ per 1 month

Answer 3

and how can I do that

Answer 4

total amount of $$$ / total months

Answer 5

$400 in 10 month
x in 1 month

Answer 6

that is all

Answer 7

40

Answer 8

yes exactly

Answer 9

good so 40 per month

Answer 10

http://prntscr.com/m9hmn0

Answer 11

total amount of money / (amount per lawn) = number of lawns

Answer 12

40 lawns?

Answer 13

good

Answer 14

http://prntscr.com/m9hn5m

Answer 15

you just have to see which choices equal 6/26 when you divide the top number by the bottom number

or you can look for choices where both the numerator and denominator of 6/26 have been multiplied or divided by the same factor

Answer 16

for example, 3/13 is equal to 6/26 since 6 and 26 were both divided by 2 to get 3 and 13

Answer 17

notice what other ratio you get when you take 6/26, then multiply the numerator + denominator both by 2

Answer 18

B is another one

Answer 19

good so A+B are your solutions

Answer 20

got it

http://prntscr.com/m9hq44

Answer 21

just have to cross multiply and solve for x

Answer 22

35?

Answer 23

good

Answer 24

http://prntscr.com/m9hr56

Answer 25

this is kind of hard to explain but since you are going from week to hour the conversion pathway is

week ---> days ---> hours

you can stop at hours, so anything with seconds or minutes is not helpful here

Answer 26

so b c and d?

Answer 27

you wouldn't use 60 minutes per hour because you are neither given, nor asked to find, minutes

so just the last 2

Answer 28

http://prntscr.com/m9hspi

Answer 29

think of "315 inches" as the numerator. what can you multiply that will allow you to cancel out "inches" and put "feet" in the numerator instead?

Answer 30

B?

Answer 31

good

Answer 32

http://prntscr.com/m9hz4s

Answer 33

any ideas? this follows similar logic to our previous example



if you want to eliminate "meters" from the numerator and make "feet" the new numerator, would you multiply by (3.28feet/meter) or (1 meter/3.28 feet)?

Answer 34

multiply by (3.28feet/meter)

Answer 35

good, so then you'd just multiply 1700 meters * (3.28 feet/meter) to get your solution, cancelling out meters

Answer 36

I got 1 699.5648

Answer 37

after you cancel out units it's just 1700*3.28

Answer 38

I multiplied 1700*3.28 and got 5576

Answer 39

so C

Answer 40

how about number 9?

Answer 41

similar logic, use conversion factors to go from
hours --> minutes --> seconds, remember that there are 60 minutes per hour, 60 seconds per minute

Answer 42

B?

Answer 43

good