For a college chemistry experiment, students need to prepare a solution containing ethylene glycol. they are each given 9 fluid ounces of a solution containing 5% ethylene glycol, to which they will add another solution that contains 37% ethylene glycol. how much of the 37% solution should they add to obtain a 21% ethylene glycol solution?

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

stethere all not eveanp-by-step explanation:

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .