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英語 中学生

(6)の答えが ウ になるのですが理由がわかりません どなたか教えてください!

3 [3] 淡ののAyumi)が講いたスピーチの原を読んで。あとの問いに答えなさい。 Helo。 eyone.Tm Yamada Ayumi During the winter vacaion。 my fanHy and Listed Ameni and stayed there or sweek。 Iwas surpred to Rnd that most people there ddt te "esh to pay tor hings。There was even s store which hed a sign。 We doot accept ch That made me swrprsed because Tnerersaw any agns like thatinJpann When youl Pay for something wihout cash。it is caled emsHiess Payment。 1 wanied to leara more bout cashiss payment soTlearmed aboutiton he hermet sher coming back to Japan. Tieemed from っthis "graph tiat cashiess payment is very popular in ohler counties。 hn 2006.in contres hke Korea。 the UK Ausrite and Canads。 nore than 50%e cf payments ere cashiess。 Fspecally in Korea. 96% of parments were cashiessi Thenuhow abour ml ur couney2 hnjspan.( ② ) 20% were csshess paymentl This means most people nl JRpan stHl use cash to pay for things. Cashless payment is so useful but it isnt very| PopurinJapan っLwantto kaow wiy Todnd some reasons on the intermet。Frst Jspanese people dent inkitis( の )o mrm cmsh becamse the Crime nte inJapan is veoy low。Sccond. tere are so many YATNS Japan. so People cen "wibhdraw cash essiy We can withdraw cash cven at comyenience sores stamy Gme ofihe dy. During my siay in America.1learaed that cssNess payinent is Yery useful My parents nt have to carry a ot cf cssh wa ttem Amd they ddmt have tp cotnt ot ef "il emd cmins when they bought tingt。 Cashtess paynent was quick nd mede otr tip easier Tho lsarmed tis good fr shops and restrans to accept casHless peyment_ Tiod an imerestng *artcle ttwas writen by s oreign person who Yiited Japan。 fn the ariGle she wroter 1 wasnt able to buy sone things because many shops sccepted ( ⑨ ) caslu esHiess payrment is more Popuar in Japan.1 wantto Yait apan again and enioy shopping amd catng more・ Howeyer there are osome problens wit casNiess payment Firstitis( ⑨ )foraomel people. PBspecialy for olier people. pying in cash is easier becewse many of them dont kaopw much about new Yechnologies and because they think the cld way ia te best way。 SecondL iis hard fr some shops and restaurants to inboduce castless payrmemt sysiems because they are espensive. Asork is imporant to know that cashless peyrment systems でemtbe used during Ymaturdl dsasters or when here is no dlecricty The Japanese "governmnt js tying to inrodce more csshless payment systems and hopes tiet 40% of al payments wil be cashless "by 2025、 And in 2020.*the Ormpic and Turalympic Cames wil be helt in Tokyor Japan So many people wil come to Japan from sbroad. 1hope that cshless payment systems willbe intredced in more shops and resiatrants in japan before tien。 People wil be able to enioy shoppine and eating nore でreiyr Ar be same Hime 1 hope hat sh can aho be accspted for people who want 中fm adieonal

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数学 高校生

nは3以上の整数であるから とありますが、nは3以上の整数じゃないと121(n)にならないことがあるんですか?

に ーー E当 古138 。和数法の変換 ジン (⑪) 10進数8を2進法で表すと7上沼 Ma (2) ヶは3 以上の整数とする。10候半で 7 を 7 所 ⑬) iiO11e。 12020】 れぞれ 10 進数で表せ< ニァszt革を証 いい| 指名/= (」) 10道数をヵ進法で表すにはほ。 arcをちょで4てるり生き / た余りを逆順に並べればよい。 次の 市ほ。 23 を 2 館数で表す方法で2 we / 右のように。 商が割る Lo 2 ) 2 り シン に AN 抽 数より小きくなったら 2) 61 割り算をやめ。 最後の PD 商を先頭にして 祭り を逆順に並べる方法も ある< よって, 23 の 2 進数表示は 10111の (②③ ヵを2 以上の整数とすると,ヵ進法で xn の整数は ggカー 7ガ二の・7|寺のor2 の意味で (og en の は0 以上カー1 以下の整数語 (②⑰は, の⑦ナ1)* を展開してみると。 わかりやすい。 (⑬ 例えば, 121q。 なら, 1・3*二2・3!1・3"ニ9+6+116 として 10 進数に下村議 zio と書かれた At Noe 「記3ヨ = Q) ⑦ 2)28 余り 《⑰ 5)78 余り 画 2) 39 誠0 BS 1 78ニ1-29+0-2*T0. 2)1 5) 3…0 2か 用 0 … 3 0 と表されぇ。 よって 1 の時 ns ) 4 あっ< また, 78=3-S+0s 2) 2・ ⑦ 10010 とも表きれるから の (⑰ 303g PS (2) ⑦ナリーバナ227 1=1 22.衣王相の ②⑳ ヵ) が27+1 _々は3以上の整数であるから, ヵ進法では 121。) 7 ) nキ2

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