Miguel is purchasing 2.25 pounds of oatmeal. The serving suggestion is 0.2 pounds. It costs $0.79 per pound. How many servings w
2 answers:
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Answer:
Step-by-step explanation:
Given , start by squaring both sides to work towards isolating
:
Recall and
:
Isolate the radical:
Square both sides:
Expand using FOIL and :
Move everything to one side to get a quadratic:
Solving using the quadratic formula:
A quadratic in has real solutions
. In
, assign values:
Solving yields:
Only works when plugged in the original equation. Therefore,
is extraneous and the only solution is
