<span>105 minutes
"Stan and Hilda can mow the lawn in 35 min"
35 = 1/(S + H)
"Hilda works twice as fast as Stan"
H = 2S
"how long would it take Stan to mow the lawn alone?"
T = 1/S
First, let's determine what S is, so
35 = 1/(S + H)
Substitute 2S for H
35 = 1/(S + 2S)
Solve for S
35 = 1/(3S)
35(3S) = 1)
105S = 1
S = 1/105
Now solve T = 1/S with S = 1/105
T = 1/S
T = 1/(1/105)
T = 1/1 / 1/105
T = 1/1 * 105/1
T = 105
So it will take Stan 105 minutes to mow the lawn alone.</span>
Answer: 
Step-by-step explanation:
The equation of the line slope-intercept form is:
Where m is the slope and b is the y-interecept.
The standard form is:
You know that must be parallel to 
, therefore both have the same slope. So you must solve for y:
Substitute the slope m=-1. Since the line passes through the origin b=0:
Then in standar form is:
Answer:
f(4) = 9
Step-by-step explanation:
You just need to substitute 4 in for x.
f(4) = 5(4) - 11
f(4) = 20 - 11
f(4) = 9
Ratio-wise it is the same :)
They're just moving decimals
.42 : .02
4.2 : .2
42 : 2
420 : 20
The Answer "45H=P" because you're gaining 45 dollars per hour so if you work one hour you gain 45 dollars. Hope I helped :)
