Answer:
5.2mph
Step-by-step explanation:
Speed =distance/time
13/2.5=5.2 mph
Suppose you add x liters of pure water to the 10 L of 25% acid solution. The new solution's volume is x + 10 L. Each L of pure water contributes no acid, while the starting solution contains 2.5 L of acid. So in the new solution, you end up with a concentration of (2.5 L)/(x + 10 L), and you want this concentration to be 10%. So we have

and so you would need to add 15 L of pure water to get the desired concentration of acid.
Answer:
B) 20
<u>The minimum of a data set is the </u><u>smallest</u><u> term of that set.</u>
We arrange the terms in ascending order
→ 20,20,25,30,35
So, the minimum is 20
<u>--------------------------------</u>
<u>hope it helps...</u>
<u>have a great day!!</u>
1/2+1/2=2/2=1 so 1/2 was eaten and the other half was leftovers.