Answer:
20(E)
Step-by-step explanation:
Printing press R, S and T are working together at their respective constant rate.
They can do a job for 4 hours.
Let r, s and t be the time for printing press R, S and T to complete the job alone at their respective constant rate.
Rate of printing press R = 1/r
Rate of printing press S = 1/s
Rate of printing press T = 1/t
Rate = job / time
R + S + T = 4
1/r + 1/s + 1/t = 1/4
S + T = 5
1/s + 1/t = 1/5
Substitute 1/s + 1/t = 1/5 in the equation 1/r + 1/s + 1/t = 1/4
1/r + 1/5 = 1/4
1/r = 1/4 - 1/5
1/r = (5 - 4)/ 20
1/r = 1/20
r = 20 hours
It takes the printing press R 20 hours to complete the job alone
Answer:
6 or -6
Step-by-step explanation:
The symbol √ is the square root symbol.
The square root of a number is a number that when you multiply it by itself you get the first number.
For example:
The square root of 9 is 3 since 3 times itself, 3 × 3, is 9.
The square root of 9 is also -3 since (-3) × (-3) is 9.
The question is asking for the positive and negative square roots of 36.
What number multiplied by itself is 36?
The answer is 6 since 6 × 6 = 36 and -6 × -6 = 36
Answer: 6 or -6
(1+2)=3
6/2 = 3
3(3) would be 3×3
3x3=9
Answer:
DAILY DOUBLE
Step-by-step explanation:
Uhhh... How about 90,000?
Host:ight bet.
x²-5x
24 0
is in its groupe form tingy.
