In this formula, the m represents the slope of the line and the b represents the y value where x is equal to zero. This value is otherwise known as the y-intercept
Suppose the larger pump alone can empty the tank in L hours, and the smaller pump can finish the job in S hours, then each hour the large pump empties 1/L portion of the tank, and the small pump empties 1/S per hour
Working together for three hours, they empty the whole tank, which is 100% of it, so 3/L+3/S=100%=1
Larger pump can empty the tank in 4 hours less than the smaller one, so L=S-4
replace L: 3/(S-4)+3/S=1
Make the denominator the same to solve for:
3S/[S(S-4)] +3(S-4)/[S(S-4)]=1
(3S+3S-12)/[S(S-4)]=1
(3S+3S-12)=[S(S-4)]
S^2-10s+12=0
use the quadratic formula to solve for S
S is about 8.6
The answer is not whole hour.
Answer:
-31.77
Step-by-step explanation:
95.31/3 since each ticket is the same amount.
This gives you 31.77, which is the price of 1 ticket.
Her balance would still be negative, so change 31.77 to -31.77
Answer:
x = 41 degrees
Step-by-step explanation:
supplement of 73 = 107 degrees
x = 180 -107 - 32 = 41 degrees
Answer:
-2
Step-by-step explanation:
We have two points we can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( -11-1)/(-3 - -9)
= (-11-1)/( -3+9)
= (-12)/6
= -2