This year Tammy watched 80 movies she thought that 72 of them were very good of the movie she watched what percentage does she t
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ANSWER
EXPLANATION
We want to approximate, using the ALEKS calculator, the value of:
To do this, we input the radical and the number into the calculator. The result is:
Since we have to round the answer to the nearest hundredth, we will pick the number in the thousandths place value, which is 3.
This number is less than 5, so, we round it down to 0 and add it to the number in the hundredth place value, which is 8.
Hence, the answer is:
now, notice, we use the decimal format for the percent, namely 17% is 17/100 or 0.17 and so on
so.... we know, whatever "x" and "y" is, they must add up to 100 grams
thus x + y = 100
and whatever the concentrated amount is, it must add up to 17 grams for the composition
thus 0.1x + 0.2y = 17
solve for "x", to see how much is needed of the 10% alloy
what about "y"? well, y = 100 - x