Tanya bought two adult tickets and one children's ticket to a movie for $15.90. Li bought four adult tickets and four children's
tickets for $38.40. Find the cost of one adult ticket and the cost of one children's ticket.
1 answer:
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Lets remember the property "alternative-interior angles" when we have parallels lines:
Given two paralles lines, the following is true:
In our question, we have:
We know that the angles J + P + K=180
So, the triangles have all the angles the same, so they are similar by angle-angle-angle, and they have one side congruent, AC=CD, so the triangles are congruents.
