Answer: the anwser is A
Step-by-step explanation:
I used a calculator lol
Step-by-step explanation:
hi I have answered ur question
Answer:
See below in bold.
Step-by-step explanation:
You work in fractions of the city streets done per hour:
1/200 + 1/400 = 1 /x where x is the number of hours taken by 2 teams.
Multiply through by the LCM 400x:
2x + x = 400
3x = 400
x = 133.33 hours.
As there are 168 hours in a week they will have enough time.
2:12 is an equivalent ratio
