Lê Quốc Trần Anh Coordinator
15/11/2017 at 17:05-
Barbara cost \(\dfrac{14}{7-5}\cdot7=49\)$ for his bill
Lê Quốc Trần Anh selected this answer. -
Bảo Bình 15/11/2017 at 19:15We have diagrams:
Barbara's cell phone bill :|____|____|____|____|____|____|____|
Tina's cell phone bill :|____|____|____|____|____|
Equal parts of Barbara's cell phone bill minus equal parts Tina's cell phone bill is:
7-5=2(equal parts)
Barbara's bill is:
14:2 x 7=49
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Nguyễn Hưng Phát 16/11/2017 at 12:34We have diagrams:
Barbara's cell phone bill :|____|____|____|____|____|____|____|
Tina's cell phone bill :|____|____|____|____|____|
Equal parts of Barbara's cell phone bill minus equal parts Tina's cell phone bill is:
7-5=2(equal parts)
Barbara's bill is:
14:2 x 7=49