Answer:
Step-by-step explanation:
Since 15 liters of water flow through a water pipe and enter a tank within 4.5 minutes, the same amount of water would flow through a similar pipe at the same time. Therefore, if two similar water pipes are used, the volume of water that would flow into the tank in 4.5 minutes is 15 × 2 = 30 liters
Therefore, the time it will take to pump 727.5 liters of water into a water tank using 2 similar water pipes is
(727.5 × 4.5)/30 = 109.125 minutes
Answer:
3
Step-by-step explanation:
Given the complex number z = a + bi then the absolute value is
| z | = 
Given - 4 -
i, then absolute value is

= 
=
=
= 3
Answer:
4y-36
Step-by-step explanation:
you distribute the 4 to y and 9
(4 x y) - ( 4 x 9)
4y - 36
Answer:
×=-2
Step-by-step explanation:
or, -2x+5=9
or, -2x=9-5
or, -2x=4
or, -x=4/2
or, -x=2
or, x=-2
Answer:
BELOW
Step-by-step explanation:
Y=23
X=6.5