alleryToday's temperature C is 20 degrees higher than yesterday's P. Which equation fits?
AC = 20P
BP = C + 20
CC = P + 20
DC = P - 20
Answer & Solution
Correct answer: C. C = P + 20
1. Today is 20 degrees more than yesterday.
2. So take yesterday's P and add 20 to get C = P + 20.
3. P = C + 20 reverses the days, and C = 20P multiplies instead of adding.
_Source: Wikipedia, Elementary algebra, Variables_
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