Answer:
the second one is true
Step-by-step explanation:
5=-4. 2nd one 5=5
Answer:
27.69 cubic meters
Step-by-step explanation:
1 cubic feet =0.028 cubic meter
978*0.02832= 27.69cubic meters
The answer is most likely (c).
Answer:
answer is 80
Step-by-step explanation:
7200 / 90 = 80
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.
