Answer:
c =4 4/9 minutes
Step-by-step explanation:
The formula is
1/a + 1/b = 1/c where a and b is the time for each working alone and c is the time working together
1/8 + 1/10 = 1/c
Multiply by 40c to clear the fractions ( 40c is the least common multiple)
40c(1/8 + 1/10 = 1/c)
5c + 4c = 40)
9c = 40
Divide by 9
9c/9 = 40/9
c =4 4/9 minutes
What do u need help with?
Answer:
60m = t
Step-by-step explanation:
For " per minute ( 1 minute ) ", he can type 60 words.
For " m minutes ", he can type
m times 60
= m x 60
= 60m
Hence,
60m = t
Answer:
Greek
Step-by-step explanation:
compare 5/7 and 64/89
5/7 = .71429
64/89= .71910
64/89 is the greater fraction
Solving the system of equations shows that to make these equations true x=1 and y=0.5
