Assuming that the "W" is for wins, then the winning percentage is:
(wins)/(wins and losses), if ties are not included (as is the case in the MLB preseason)
If ties are included, then it's:
(wins+ .5*ties)/(all games played)
As an example, let's say a team won 5 games, lost 2 and tied 3 others.
Excluding ties, the win percentage is 5/(5+2) = 5/7 = .714
Including ties, the win percentage is (5+(.5*3))/(5+2+3) = (5+1.5)/(10) = 6.5/10 = .650
It is W/100.
how to turn 15 percent into a fraction
It is W/100. Depending on the value of W it may be possible to simplify the fraction
W-V percent concentration g/mL = 1.20g/240mL = 0.005 g/mL percent
Divide the amount given as a percent of a whole by the percent, converted to a decimal by multiplying the percent by 0.01 (exact). The value of the whole will be the quotient. In symbols, when w is the unknown whole, k is a known percent of the whole, and the percent p itself is known, w = k/(0.01)p or 100 (k/p).
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w
W
A home-using acetic acid solution is lesser than 10% w/w.
No. Only if the two components have the same density (specific gravity), which is highly unlikely.
Designate the weight in ounces of the first alloy, containing 40 percent copper, as w. Then, from the problem statement and the fact that percentages can be converted to decimals by dividing by 100, 0.40w + (0.80)(400) = 0.60(400 + w). Applying the usual methods of algebra, multiplying out results in: 0.40 w + 320 = 240 + 0.60w; transposing like terms with sign change and collecting results in: (0.40 - 0.60)w = 240 -320; or -0.20 w = -80, or w = 400.
20 g = 60% x W thus W = 20g / 60% = 33.3g