Let n be the amount of time it takes william to cut the lawn. Then Shelly takes
n-2 hours. So:
1/n+1/n-2=1/3
3(n-2)+3n=n²-2n
6n-6=n²-2n
n²-8n+6=0
Using the quadratic formula, we get a positive value of 7.1623 hrs as the amount of time william takes working alone, and 5.1623 as the amount of time Shelly takes working alone
☺☺☺☺
Answer:
7
Step-by-step explanation:
28 35 56
1 and 28 1 and 35 1 and 56
2 and 14 7 and 5 2 and 28
4 and 7 4 and 14
7 and 8
Answer:
A
Step-by-step explanation:
As it is 7 people that like blue
Answer:
6+6+6+6+6+6
Step-by-step explanation:
if you add 6 six times you will get 36
Answer:
Step-by-step explanation:
9^-5 = 9^4 x 9^-9
4-9 = -5
