Answer:
-3
Step-by-step explanation:
This is because your questions is in an y=mx+b form therefore b is the y-intercept and in this equation -3 would be b therefore that the is the y-intercept
Answer:
x+%2B+28+=+2x+%2B+4
x+=+28+-+4
x+=+24
He is 24 now
Step-by-step explanation:
Answer:
50 calls
Step-by-step explanation:
this is because you have to pay 20 dollars a month so you do 25 - 20 = 5 and then divide 5 by 0.10 and get 50.
Answer:
The volume of the concentrated 80 gallons mixture is 20 gallons
The volume of water in the 80 gallons mixture is 60 gallons
Step-by-step explanation:
The given parameters are;
The content of Container A = The cleaner
The concentration of the cleaner = 20% solution
The content of Container B = Pure water
The concentration of the desired solution = 5%
The volume of the required solution = 80 gallons
Let x represent the volume of the concentrated solution and y represent the volume of water in the 80 gallons mixture
Therefore, we have;
20/100 × x + y×0 = 5/100×80
x + y = 80
y = 80 - x
20/100 × x + (80 - x)×0 = 5/100×80
0.2·x = 4
x = 4/0.2 = 20
x = 20 gallons
y = 80 - x = 80 - 20 = 60
y = 60 gallons
The volume of the concentrated solution (80 gallons mixture) = x = 20 gallons
The volume of water in the 80 gallons mixture = y = 60 gallons.
Answer:
Mrs. Donaldson earned 907.20 dollars.
Step-by-step explanation:
907.20
