Answer:21
Step-by-step explanation:9+10=21
Answer:
7
Step-by-step explanation:7
Answer:
The answer to the problem is 1/2
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.
2*3/8
whenever dividing the second fraction flips
2*3/8
You can divide by 2 for 2 and 8
2/2=1
8/2=4
1/4*3
=3/4
Answer is 3/4
