How many quarts of olive oil did they use? (see below) Thanks!
Solved for one of the volumes. I will let you solve for the other by subtraction.
To maintain a high level of precision I will stick with fractions.
Rounding decimals can lead to accumulated errors. So if you wish to use decimals convert the fractions at the very end.
Let the volume of 30% oil be
Let the volume of 79% oil be
Let the volume of the blended be
For now ignore the units of quarts.
When blended for total volume we have:
When blended for % of oil volume content we have (in quarts):
I choose to substitute for
Having a common denominator of 2000 gives:
Multiply both sides by 2000
I will let you finish that off.