Answer:
store 2 and 4
Step-by-step explanation:
2/5= 40%
Answer:
B
Step-by-step explanation:
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.
Just multiply each side by ten so
x ≤ 50
B) 6/10.
For probability questions, it is just the sum of the object you need to find, over the total sum of all objects.
Hope this helps!