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Clearnote
Q&A
Junior High
Mathematics
第六題求解!
Mathematics
Junior High
over 1 yearago
Jenny
第六題求解!
(1)2x+3 10 (2)-4x+4 3-10 (3)x -482-14 7×2 5.若x為整數且滿足一元一次不等式 0.4x<2,則13+2.5x的最大整數值為23 413+2.5×4=13+10 0147 = x < 14 = × 45 6.已知白糖每公斤x元,黑糖每公斤(30-x)元。今將12公斤的白糖與8公斤的黑糖混合,如果要讓混合後的糖每公斤平 均價格大於16元,則白糖每公斤至少要 元。(取整數值) 12+8=20. 12x+8(30-x)=12x+240-8x =4x+240 7. 某城市的計程車車資規定為:上車起跳價85元,走了若干公尺後開始跳表,每跳一次加5元,如果菀婷坐計程車,除
Answers
abc🐷
over 1 yearago
應該是這樣(我數學沒很好所以不確定)
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