Answer:
27
Step-by-step explanation:
180-153=b
b=27
Answer:
hi sorry i need points im in the neggative somehow
Step-by-step explanation:
Answer:
In context of the problem, -40 means that 40 was the difference between the actual data, and the estimated data.
Step-by-step explanation:
Take 156, divide by 13 and the multiply by 12. It is 144
In five quarts, we have 2 quarts of acid and 3 quarts of water
total = (2 + 3) = 5 quarts
concentration = 2 / 5
We want a 30% concentration
total volume = 2 + x
.30 = 2 / (2+x)
.6 + .30 x = 2
.30x = 1.4
x = 4.66666 gallons of water
(or we need to add 1.666666 gallons of water)
Double Check:
acid concentration = 2 / (2 + 4.666666)
acid concentration = .30
