A store is having a sale on trail mix and jelly beans. For 2 pounds of trall mix and 5 pounds of jelly beans, the total cost is $12. For 8 pounds of trail mix and 3 pounds of jelly beans, the total cost is $31. Find the cost for each pound of trall mix and each pound of jelly beans.
X
Cost for each pound of trail mix: $1
Cost for each pound of jelly beans: []
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First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.