Jennifer owes $194 to a credit card company. she makes a $25 purchase with the card and then pays $60 on the account. what us he
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Use the midpoint formula and solve. work pictured below
The marked angles are opposite angles, and as such they have the same measure. So, we have
Subtract 2a and 11 from both sides to get
Divide both sides by 4 to get
Now that we know the value of a, we can compute the measure of the angles. We can also verify that the solution we found is correct by verifying that both expressions actually give the same result: