He has £160 out of £400 saved up. Just rewrite that as a fraction and then there are two ways to finish it off.
The first way would be to just divide.

Then turn that decimal into a percentage by multiplying by 100.
40%The second way would be simplify the fraction until the denominator is 100. The numerator is your answer.
40%Harry has saved 40%.
the line is represented with y over x
so it would be 35/1 which = 35
1000 kg/m3 for fresh water
hope this helps
Answer:
Two trapezoids labeled V R A S and B U W D. Sides B U and V R contain one tick mark. Sides B D, U W, V S, and R A each contain two tick marks. Sides A S and W D each contain three tick marks. The angles represented by vertex letters U, B, R, and V each contain two tick marks. The angles represented by vertex letters D, W, S, and A each contain one tick mark.
The amount of sugar
in the starting solution contributes to a 36% concentration, so we have

units of sugar in the solution.
Into this solution, Sharon wants to pour
liters of water to obtain a smaller concentration of sugar in the overall solution:

So Sharon needs to add
liters of water to the solution to get the desired concentration.