The difference between the solutions to the equation #x^2 = a# is 30. What is #a#? A student calculates the density of iron as 6.6 g/cm3 using lab data for mass and volume. A handbook reveals that the …

See a solution process below: We can rewrite this question as: What is 6% of 800? "Percent" or "%" means "out of 100" or "per 100", Therefore 6% can be written as 6/100. When dealing with percents …

How do you solve #7k-21=35#? How do you convert 1666 into a fraction and percent? A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. What is the distance in the air …

Questions and Videos on Percent Composition, within Chemistry

72% To figure out what percent 342 is of 475, you simply divide: 342/475 When you do that calculation, you get 0.72 Move the decimal twice (multiply by 100) to convert that into a percentage and you've …

Mar 31, 2016 · A compound's percent composition essentially tells you how many grams of each constituent element you get per 100 g of compound. In order to find methyl ethyl ketone's (MEK) …

Oct 3, 2016 · Explanation: You can find the percent by changing the decimal into a fraction.

"Option C" 18%xx$150.00 =18%xx ($100.00 + $50.00) =$18.00+$9.00=$27.00 But just give the waiter $30-00................. I'm sure Lily's grandmo did just that.

Percentage is in fact #ul ("just a fraction")#. However it is a special fraction in that the bottom number (denominator) is fixed at 100. Example: 60 percent is #60/100# In fact this is 60 lots of #1/100# or …

A solution's percent concentration by volume is defined as the volume of the solute, which in your case is isopropyl alcohol, #"C"_3"H"_8"O"#, divided by the total volume of the solution, and multiplied by …