Question

Find the unit rate, and then use it to solve the problem.



A trucking company makes 50 deliveries in 5 days.

How long will it take for 400 deliveries?



A.
8 days


B.
10 days


C.
20 days


D.
40 days

Answer 1

how many 50s are in 400?

Answer 2

we have a ratio of 50:5

50k : 5k maintains that ratio

50k = 400, defines k for us ... and by extension 5k

or just solve for 5k ... either way

Answer 3

okay

Answer 4

cant you just divide it by 10?

Answer 5

you can, hence the option to just solve it for 5k

Answer 6

wait

Answer 7

arenti suspose to didve 10 by 400?

Answer 8

no

Answer 9

the most basic approach is to determine the solution for

50k = 400

this defines k, which means we can know 5k

Answer 10

50=400 5k=40

Answer 11

i mean 4

Answer 12

divide both sides by 50

50k/50 = 400/50

k = 40/5

multiply both sides by 5

5k = 40*5/5

Answer 13

are you still lost?

Answer 14

the account got terminated ... for reasons beyond my knowledge.