Concentration = [ (mass of sugar)/(mass of solution) ] * 100
=> mass of solution = mass of sugar * 100 / concentration
1) concentration 20%
mass of sugar = 0.5 lbs
=> mass of solution = mass of sugar * 100 / concentration = 0.5 lbs * 100 / 20
mass of solution = 2,5 lbs
mass of water = mass of solution - mass of sugar = 2.5 lbs - 0.5 lbs = 2.0 lbs
Answer: she must add 2.0 lbs of water and will obtain 2.5 lbs of syrup
2) concentration 25%
Follow the same procedure.
mass of solution = 0.5 lbs * 100 / 25 =
mass of solution = 2.0 lbs
mass of water = 2.0 lbs - 0.5 lbs = 1.5lbs
Answer: she has to add 1.5 lbs of water and will obtain 2.0 lbs of syrup
3) Same procedure
mass of solution = mass of sugar * 100 / concentration = 0.5 lbs * 100 / 1.5
mass of solution = 33.33 lbs
mass of water = 33.33 lbs - 0.5 lbs = 32.83 lbs
Answer: she has to add 32.83 lbs of water and will obtain 32.83 lbs of syrup
Scaling on map is defined as the ratio of a distance on the map to the corresponding distance on the ground.
Here, 3.2 centimeters on the map is equivalent to 4 kilometers.
We can use unitary method to find, how many kilometer/kilometers each centimeter corresponds to.
Using the unitary method:
Therefore, the scale of map represents 1.25 kilometers for each centimeter.
Answer: 9(y-4)
Step-by-step explanation:
the gcf is 9
Step-by-step explanation:
First of all we have to find the equation of the line
Slope-intercept form is:
Putting the value of slope
Putting the point in the equation
(-4,-1)
So the equation is:
The graph is attached with the answer
Keywords: Equation of line, slope
Learn more about slope at:
#LearnwithBrainly
Answer:
£65.10
Step-by-step explanation:
42*8 = 336
10% = 33.6
14*15 = 210
10% = 21
5% = 10.5
31.5 +33.6 = £65.10
hope this is correct ^^