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標題:

• Vector Question !! ~~@1@
• peoples同台sd sms問題
• 我想問火影忍者tvb做到多小集---

• Vector Question !! ~~@1@
• peoples同台sd sms問題
• 我想問火影忍者tvb做到多小集---

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中一math

發問:

there are 42 students in S1A. the number of boys is 4/3 times that of girls. find the respective number of boys and girls there. Let x be the the number of boys and girls there

最佳解答:

Let x be the number of girls. x+4/3x=42 7/4x=42 x=42(4/7) x=24 The number of girls is 24. The number of boys: 42-24=18

其他解答:

there are 42 students in S1A. the number of boys is 4/3 times that of girls. find the respective number of boys and girls there. Let x be the number of boys x+4/3x =42 3x/3+4x/3=42 7x/3=42 x=18|||||Let x be the the number of girls (4/3)x + x = 42 4x + 3x = 42*3 7x = 126 x = 126/7 x = 18 then, the number of boys = 42-18 = 24 therefore, the respective number of boys and girls are 24 and 18.