oops sorry wrong question. sorry if I confused anyone :(
To help with thinking about this, we can say that the 6 gallons of 50% acid contains 3 gallons of pure acid and 3 gallons of filler. This would make the concentration 3/6, or 50%. Adding a gallon of pure acid would shift the concentration to 4/7, or 57.1%.
When the relationship becomes 70%, four gallons of pure acid have been added.
3+4 7
—— = — = 70%
6+4 10
82.14 will be rounded down to 80, 38.5 will be rounded up to 40, and 41.3 will be rounded down to 40.
80 + 40 + 40 = 160
The approximate sum is 160.
Answer:
Negative
Step-by-step explanation:
Hello There!
The points on the scatter plot show some sort of correlation as they are grouped closely enough to create a trend line ( a line drawn where most points are at. )
If you were to draw a line through the points, the line would have a negative slope as most of the points go down from left to right indicating that the correlation is negative
To find the desired width we need to solve the equation:
So, the new window will be
4.5 feet wide.
