They mean the decimal portion. it goes 10s. 100s. 1,000s. so the 100ths is thr number 9
Answer: the one that ends with 30. D the fourth one
Step-by-step explanation:
Answer:
120 liters of 60% alcohol solution is needed
Step-by-step explanation:
Let's assume
x liters of 60% alcohol solution is added
so, we get solution as


we are given
40 liters of a 20% alcohol solution is



so, total alcohol solution is

now, we can find total solutions
total solutions is

now, it is making 50% solution
so, we get

now, we can solve for x




So,
120 liters of 60% alcohol solution is needed
That would be "c" because you would have to subtract 85 from 120 and then your answer is less then 85
Answer:
Here is the solution. Hope it helps.