Answer:
y = 54
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
Answer:
He should by at least 22 inches right because he uses 22 inches for every other color?
Step-by-step explanation:
12.5/x = 25/100
cross multiply 12.5 and 100.
12.5×100=1250
the divide 1250 by 25
1250÷25=50
the answer would be 50.
I hope this helped : )
Answer:
2.4 hours.
Step-by-step explanation:
Remark
The supervisor is not quite correct. The correct answer must be lower than the lowest number, otherwise you are taking out what the person with the narrower hose must be taking out what the other person is putting in.
Equation
Let x = the amount of time needed for him to fill the pool
Let y = the amount of time needed for the second person to fill the pool
Let z = the amount of time needed for both to fill the pool.
1/x + 1/ y = 1/z
1/4 + 1/6 = 1/z The common denominator is 12
3/12 + 2/12 = 1/z
5/12 = 1/z Cross multiply
5z = 12 * 1 Divide by 5
z = 12/5
z = 2 2/5
z = 2.4 hours
