We can calculate EEE, the amount of euros that has the same value as DDD U. S. dollars, using the equation E=\dfrac{17}{20}DE= 20
17

DE, equals, start fraction, 17, divided by, 20, end fraction, D. How many U. S. dollars have the same value as 111 euro?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.