為什麼是3×20（標記藍色的部分）？

第二部分: : 非選擇題( 1. ~2題) 1. 適逢中元普渡,下列三間超商同時舉辦飲料促銷方案如圖(三): 我家超商 你家超商 LOVE 超商 俗俗賣方案! 全面8折 把握現在! 送現金方案! 每消費滿100元 立即折抵20元! 圖(三) 大方送方案! 買10送2 買愈多愈划算! 2 (1)若芬芬想買12瓶每瓶原價25元的飲料作為拜拜的貢品,則她應該選擇到哪一 家超商購買所花的錢較少? 第 10 回 山 若小玲分別到三家帶回相同數量的25元飲料十幾瓶,但每一家上限不超過15 瓶。已知小玲都有使用到三家的促銷方案,且三家合計花費為870元,則小玲 共買了幾瓶飲料? 42瓶 (2)設個買(x+10)瓶且x≤5 14 我家超商: 12X25×0.8 OE超商: 10x55:250元 (40+x10.8x25+10+x)x2-3x207 170 (10+√x-2)x25=8290 240元 我家二你家 < Love 40+4x+50+5X-12+50+5X-10 =174 你家超商: 六選我家你家. 14x=56 117 12x25:30元 X=4 14×3=42瓶 3x20=609 設x瓶 XX + xx20+220+25%:Mo 300-60:240元 too 1=1-75 1365x=6+= 124

求解🙏

in this town. man 500 e theme jobs change 口 (28~30) Dear Bacon, When we first met on the street, you were small and sweet. Every weekend, we jogged together in the morning. We also played baseball in the park. I threw the ball and you caught it. At night, you sat beside me when I did my homework. Before I went to bed, you always gave me a good night kiss. I felt lucky to have you with me. However, a year later, everything changed. You have grown too big and become very strong. Jogging with you is dangerous. You often dash and pull me into the trees. When we play in the park, you always bite other kids and dogs. At night, you bark a lot. Also, at home, you break every piece of glass and scratch the sofa. You're tearing the house apart. Tomorrow I mus take you to Dr. Jones. I know he looks serious, but my parents and I believe he will turn you into a good dog. So have sweet dreams tonight. Love you, Jimmy dash bark scratch B 28. Where did Jimmy first meet Bacon? (A) In a shop. (B) On a street. (C) In a park. (D) At Jimmy's school. 29. Which is true about Dr. Jones' job? (A) Training dogs to be better. (B) Teaching parents to play with kids. (C) Helping dogs to dream and sleep well. (D) Teaching people to play baseball with others. 30. What can we learn from this letter? (0) (A) Jimmy bought Bacon from Dr. Jones. (B) Jimmy went jogging with Bacon only on Mondays. (C) Jimmy broke all the windows of his house. (D) Bacon barks a lot at night. buy blago tear... apart T'hob 10.1

請問這兩題，謝謝🙏🙏🙏

( 21. ADAE~AACB E DA = 2, AE =1 AC = 8 (A) (C) 4√3 3 2√3 LARREAN SÖDER 3 (B) (D) 2√5 5 4√5 LA DAE= ZACB=90° • PA = ? D 5 B EA AE = | PX 8 HE 16

請問第九題，謝謝

25 10 TO 叶 8. 如右圖(四),ABCD 為菱形,ABCE 為正三角形,∠ABC = 80 死 1 ,則∠AED 150 B Love 9. 如右圖(五),平行四邊形ABCD中,AE平分∠BAD DE 平分 ∠ADC,且AB=3,則AE'+DE² B (五)

我不懂為什麼

E 月 處去 (B) (C) (D) 孟加拉 BT 7.已知不等式 ax-b<0,且 a<b<0,則下列數線上的圖解何者較合理? (A) 0 土耳其 210 奈及利- 170,000 86,500| 79.000 110 180 53 loved wo (A)中央民。 (B)政府應 府

在線求解🙏

2 已知x、y為整數,且(2x+3y-3)²+(3x-4y-13)²=0,求 8x-y+11 的平方根。 3. 如右圖,某車由甲地等速前往丁地,過程是:自甲向東直 行8分鐘至乙後,朝東偏南直行8分鐘至丙,左轉 90 度直 行 15 分鐘至丁。若此車由甲地以原來的速率向東直行可到. 達丁地,則此車程需多少分鐘? 乙 丙 T

在線求解🙏

Yox + -=4.5= 33 二、填充題(每格5分,共50分) =15+3 1.如圖一,平行四邊形ABCD 中,E爲DC 上的一點,且AE 與BC 交於F點,若AB =20, BF =10, CF =6,則CE = 2.如圖二,EF 爲樹高, AB、CD爲兩根垂直地面的標竿,A、C、E三點共線,若 AB =2 公尺, 8 。 5 (0 CD =2.5 公尺,又測得 BD =1公尺, BF =4公尺,則樹高爲 公尺。 3.如圖三, AB || CD,OT | AB,若CD=18, AB =12,OM = MT,則圓O的半徑= // _的倍數。 4. 已知a是任意正整數,若P=(6a+1)+4(6a+1)+3,則P必爲 (6a+IX6a+1) 360²+12a 426a+8 36a²+36a +8 。

這一題不會

5r=3000 r=600 joad: 240x 15:12 5:4 2000 Boris 3000 jų = 碼頭時,老謝距離伊達邵碼頭還有多少公尺?55, Nove 咖 3000=4 X=1256 時 45= 二十 類題 4 正比的應用 一年一度的日月潭萬人游渡活動是從朝霧碼頭游至伊達邵碼頭,全長約3000公尺。小俞和老 600 11759x41=X=$$ 3000 = 5=X²4 4X= 600X =hose x = 謝同時在朝霧碼頭出發,已知小俞游泳的速率:老謝游泳的速率=5:4,請問小俞抵達伊達邵 小米 nd gra 15 341 does your whe love very m & 外 7753650 for Alboom 二#27. 配合課本 P123 例題 4 你 Fora Borr 26 天 375-425 晚真 小 | 二 600 5/3000 Borom doad < 16 no

請問一下為什麼我算出來的答案是假分數？ 在線求解🙏

2.已知每枝鉛筆的價格比鋼筆價格的一少3元。若每枝鉛筆與鋼筆的價格相差 246 元,則每枝鉛筆和 10 鋼筆的價格各為多少元? (8分) 83 10 X=249元 3 學 設鋼笔为元 鉛笔为元-3元 X-J-3=246 X-√√x = 249 六X = 249 83 9 ...

在線求解🙏

33x-04 (3x-2)(3x-2) 二、填充題(每格8分,共40分) =9x² -12x +4 -12X-4 1 欲使x-llx+1爲x-4的倍式,則?-11x+1須加上常數m,則m=27 2 已知x爲正整數,若(2x²-16x)+(11x-88)的值爲質數,則x= ¸x²+x+A x-2 9x² - 6x + 3x6x7 3%. 32 3 設A、B是整數,若 -=x+B,則A= 4 2a+b=√√√7 +8 › a−b= √7 −5 › IJ a² − 3a+3b_b² = -1144 2-4 2²-112418 › B=