36.According to official basketball rules, a goal made beyond the
three-point line counts 3 points, while a goal made within the three-
point line counts 2 points. If a basketball team makes 45 goals in a
game and their total score is less than 100 points, how many
3-point goals have they made at most?
Topic: linear inequalities in one unknown
Ans:9
F.two Mathematics(3)
2009-02-23 1:51 am
回答 (1)
2009-02-23 2:17 am
✔ 最佳答案
Let the number of 3-point goals is xThen the number of 2-point goals is 45-x
Since total score is less than 100
3x+2(45-x)<100
x+90<100
x<10
The largest number of x is 9 and so they made at most 9 "3-point goals "
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