Tomas just bought a bottle ofshampoo that held #10.5# fluid ounces. He uses #1/16# of the shampoo every time he washes his hair. How many ounces of the shampoo did he use this morning when he washed his hair?

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Answer 1 · 2017-01-24T14:57:01

Tomas used 0.7 fluid ounces rounded to the nearest tenth of an ounce.

We can rewrite this problem as:

What is #1/16# of 10.5

When dealing with fractions the word "of" means to multiply. And, we can call the amount of shampoo used #u#.

Putting this together we can write this equation and solve:

#u = 1/16 xx 10.5#

#u = 10.5/16#

#u = 0.65625#

#u = 0.7# rounded to the nearest tenth.