True, because a triangle with 2 congruent sides/angles is ALWAYS an isosceles triangle.
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Answer:
10
Step-by-step explanation:
Answer:
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Step-by-step explanation:
392e6×0273=2048
Answer:
(300 + 50x)/(2 + x)
Step-by-step explanation:
Let the cost of teachers' edition books be t
Let the cost of students' edition books be s
So t = 150; s = 50
Then the total cost of 2 teachers' editions and x students' editions is 2t + sx = 2 × 150 + 50x = 300 + 50x.
The total number of books is 2 + x.
So the average cost per book is (300 + 50x)/(2 + x)
