Brian spent $18 on sticky notes and envelopes. each pack of sticky notes costs $3. a pick of envelopes costs $6. if he buys an equal number of packs of each, how many packs of each did brian buy?

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

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The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll