LCM - means least common multiple
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
The unit price of the disk is $0.549
<h3>Unit price of goods</h3>
The unit price of goods are the price of one portion of the goods in question.
From the given question, a package of blank compact discs on sale at 10 for $5.49, this can be expressed as;
10 disc = $5.49
The unit price of the disc is the price of just one of the disc. The unit price is expressed as;
1 disc = x
Find the ratio
10/1 = 5.49/x
Cross multiply
10x = 5.49
Divide both sides by 10
10x/10 = 5.49/10
x = $0.549
Hence the unit price of the disk is $0.549
Learn more on unit price here: brainly.com/question/825113
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Answer:
depends on the fish tank
Step-by-step explanation:
If its find R then it is 5 most likey
