Heath needs to end up with 10L of solution,
of which 9L is bleach. So let m = liters of 20%
solution needed. Then .20m liters of that are bleach.
He must then add p liters of bleach to make
a total of 10 L. That is, p + m = 10. So the system is
m + p = 10, .20m + p = 9. Solving,
<span>m = 1.25 L 20% solution, and thus p = 8.75 L bleach.</span>
Answer:
its is 50+4hr cause it is more reasonable
Step-by-step explanation:
Answer:
It's nine plus negative three
What is the median of the following numbers? 10, 6, 4, 4, 6, 4, 110,6,4,4,6,4,1
tatiyna
Answer:
The median is 4
Step-by-step explanation:
1) You order the numbers in order from smallest to largest: 1, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6, 10, 110
2) Next, you just cross out each number from each side. For example, if you cross out 1 at the beginning, you cross out the 110 at the end and if you cross out the 4 (right after the 1) then you cross out 10 which is the next number in line to the end. You carry on like that until you're left with a lone value in the middle
3) That lone value is now your median.
However, if you end up with two values in the middle, you would add them both together and then divide by 2 to get your median.
