开学时,我们学校买了同样多的篮球和排球,买排球比篮球一共少用42元,每个篮球48.5元,每个排球45.7元.篮球、排球各买了多少个?(用方程解)
人气:278 ℃ 时间:2019-10-23 04:04:00
解答
设篮球买了x个,那么排球也买了x个,
48.5x-45.7x=42
2.8x=42,
x=15,
答:篮球、排球各买了15个.
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