Can someone plz help me solved this problem I need help plz help me!

Both 8 gallons!

Step-by-step explanation:

Let's say we have x gallons of 25% solution and y gallons of 45% solution.

Then, obviously, x+y=16.

But how much alcohol do we have? That will be 35% of 16 = 5.6

So the second equation you can create is:

0.25x + 0.45y = 5.6

Solve these together and you have your answer.

Let's do the second one times 4 to get integers:

0.25x + 0.45y = 5.6 =>

x + 1.8y = 22.4

Combine with the first:

22.4-1.8y + y = 16

0.8y = 6.4

y = 8

so x = 16-y = 8

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

it would be 3 ÷by 6 because the number on each side