The school band sold t-shirts to fund a trip to play in a parade. They collected $570, and the band made 34% of that amount. How
much money do they have for their trip? Show your work using cross-multiplication.
1 answer:
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Let's say 
is the measure of the first angle and 
is measure of the supplement of . We know that supplementary angles add up to 180°, so 
. We also know that 
. Therefore, 
. It follows that 
, therefore, the first angle is 174° and the second angle is 6°.