Answer:
Seven million two thousand five hundred in standard form is 7002500
Let volume of 4% solution = x and of 14% be y
them x + y = 65........(1) also using the actual weights of salt:-
0.04x + 0.14y = 65*0.06 = 3.9
multiplying the above equation by -25 we have
-x - 3.5y = -97.5 adding this to equation (1)
--2.5y = -32.5
y= 13
and x = 65 - 13 = 52
so we need 13 mls of the 14%, and 52 mls of the 4% solution.
Answer:
q=24
Step-by-step explanation:
2+-6=-4
20+4=24
The 24 is the sum of the 20 and to turn the negative into 0 plus the 20 equals 24