Answer:
see below
Step-by-step explanation:
The equation to determine the work time is
1/a+1/b = 1/c where a and b are the times alone and c is the time together
1/80 + 1/30 = 1/c
Multiply by the least common denominator to clear the fractions, which is 240c
240c(1/80 + 1/30 = 1/c)
3c+8c = 240
11c = 240
Divide by 11
11c/11 =240/11
c = 240/11 minutes
c=21.81818
Approximately 22 minutes
Answer:28
Step-by-step explanation:
28/2=14
14+4=18
Sum is addition, less than is subtraction, equals is is, division is of and multiplication is per
Answer:
600
Step-by-step explanation:
6 percent of 5000 is 300. 300x2=600.
Sorry if im wrong
Answer:
60%
Step-by-step explanation:
Dimes are 10 cents 10 times 6 is 60
A dollar is 100 cents
