the baseball team must win 22 more games to win 60% of total games played in the season.
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we know that the team played 75 games and will play 45 more games.
1st step: 75 + 45 = 120
2nd step: find 60% of 120 which is 72
3rd step: 72 - 50 = 22
We have 10 ml of 20% acid to which we need to add "x" milliliters of 100% acid to make 50% acid.
.20 * 10 + 1.00x = .50 * (10 +x)
in which "x" is the volume of the 100% acid to be added.
2 + x = 5 + .5 x
.5x = 3
x = 6 milliliters
Source:
http://www.1728.org/mixture.htm
Scroll down to problem B
• Climate change increases local plant species richness, at least temporarily
• Empirical and modeled data suggest an increase of ∼5% per decade in cool regions
• Climatic perturbation is identified as a process driving biodiversity accrual
• Uneven global coverage of field data could be obscuring other climatic effects
This sentence does not give us enough information or the needed information to know how many of each kind of fruit are put into the bag, but it does give the needed information to know how many ounces each piece of fruit weighed which was 4.75 oz per piece of fruit.