There were 90 days in the first semester of Margaret’s school year. If she brought her lunch to school 30% of the time, how many
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Here I edited it because it was easier that way.
Solution:
Given PRQ is a triangle.
ST is a line parallel to RQ.
<u>Triangle proportionality theorem,</u>
<em>If a line parallel to one side of a triangle intersects the other two sides, then it divides the two sides proportionally.</em>
Do cross multiplication, we get
Divide by 2x on both sides, we get