Mathematics, 10.06.2021 15:50 Grayvtrain555
Students were asked to choose their favorite subject and 7/9 chose either history or biology. If 5/9 students chose history, what fraction chose biology?
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Mathematics, 21.06.2019 20:30
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.
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Students were asked to choose their favorite subject and 7/9 chose either history or biology. If 5/9...
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