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
Answer:
3,512
Step-by-step explanation:
3,520-8=3,512
Answer:
2p, since twice as long would hint to multiplication.
y = mx + b
m = slope
b = y-intercept
Since it is parallel to the equation y = 3x it means that the equation that goes through point (-1, 0) has the same slope (3x)
To find the b plug the x and y of point (-1, 0) into the equation: y = 3x + b then solve for b
0 = 3(-1) + b
0 = -3 + b
0 + 3 = (-3 + 3) + b
3 = b
so...
y = 3x + b
Hope this helped and made sense!
~Just a girl in love with Shawn Mendes
Answer:
$0.33
Step-by-step explanation:
If three packs cost 0.98, one pack costs about 0.33
This is not exact though. I rounded it to the nearest hundredth.
