Answer: About 17 hours
Step-by-step explanation:
1,203/70=17.18571429
17.18571429 is about 17 hours
Answer How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution. ... x=15 liters 15*(.20 pure acid)=3 liters 30*(.50 pure acid)=15 liters That is 18 liters pure acid That is 45 liters solution *0.45 pure acid=18 liters.
As more pure acid is added, the concentration of acid approaches 0.
Answer: n=3
Step-by-step explanation:
Divide by - 2
(N+3) = 6
Subtract 3
N= 3
Answer:
Step-by-step explanation:
(2^2)^2+2^0+(2^7)(2^(-5)) so you have
2^4+2^0+2^2 so for the three block row you have
16+1+4 and the single block is thus
21