2xp+3y=10 Solve for x
2 answers:
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Answer:
Step-by-step explanation:
the expression we have is:
To find an equivalent expression, it would be helpful to express 1/3 so that it has a 12 in the denominator:
so we substitute this:
and now we have 1/12 in both terms :
so we can factor it (we take it out of each term: in the first we are left with -x and in the second with -4):
the equivalent expression is:
Or, if you're familiar with the empirical rule and the basic properties of the normal distribution, you can use the fact that approximately
which means about
Because the distribution is symmetric, you have