Simplified it would be 1 1/33
Answer:
15 minutes
Step-by-step explanation:
If Betty mow a lawn in 60 minutes that means that she mows in a rate of 1/60
If Melissa mow a lawn in 20 minutes that means that she mows in a rate of 1/20
If they mow a lawn in t minutes that means the rate toguether is 1/t
The, the rate in which they mow a lawn has to be equal to the sum of the rate individually as follows
1/t = 1/60 + 1/20
solving equation for t
1 /t = (1 + 3) /60
1/t = 4/60
1/t = 1/15
t = 15 minutes
Answer:
Dry cleaning service at Spot-Less DryCleaners is the best deal
Step-by-step explanation:
The total expense of getting four shirts dry cleaned at Spot-Less DryCleaners
dollars
The total expense of getting four shirts dry cleaned at No Mess or Stress Dry Cleaner
dollars
The best deal would be where the expense will be the least.
Hence dry cleaning service at Spot-Less DryCleaners is the best deal.
Answer:
1,3,7,21
Step-by-step explanation:
Answer:
110.40
Step-by-step explanation:
First find the discount
120 * 20%
120*.2 = 24
Subtract this from 120
120-24
96
Now find the tip
96* 15%
96*.15
14.4
Add this to the 96
96+14.4
110.40