F1a-157 (2)なのですが、なぜ100円玉一枚をを50円玉二枚として考えるのですか？ 100円玉そのままではいけない理由が知りたいです どなたかすみませんがよろしくお願いします🙇‍♀️

Think 157 支払える金額の種類 **** 硬貨の枚数が次の場合のとき、支払える金額は何通りあるか。 ただし 「支払い」とは,使わない硬貨があってもよいものとし、金額が1円以上の 場合とする中、 1100円硬貨が3枚, 50円硬貨が1枚, 10円硬貨が2枚 100円硬貨が4枚, 50円硬貨が2枚, 10円硬貨が3枚 (2)100円硬貨1枚の場合と、50円硬貨2枚の場合は、同じ「100円」を表す. 「50円硬貨2枚」 を 「100円硬貨1枚」と考えてしまうと,「50円」のように表せな い金額がでてしまうので、大きい金額の硬貨 「100円硬貨4枚」を小さい金額の硬 「50円硬貨8枚」と考えて,全部で 「50円硬貨 10枚,10円硬貨3枚」とする。 このように考えると,「3種類の硬貨の使い方」 で表現できる「支払える金額」は一 通りに定まる. 考え方 それぞれの硬貨の使い方が何通りあるか求め,積の法則を利用する 「解答 10円硬貨 2枚の使い方は, 0~2枚の 4×2×3=24 (通り) (1)100円硬貨3枚の使い方は, 0~3枚の4通り 50円硬貨1枚の使い方は, 0, 1枚の 異なる硬貨で,同じ 2通り 金額を表すことがで 3通り 川は50円(枚 やけど(2)は2枚 よって、「支払い」は1円以上より,求める総数は, 24-1=23 (通り) きないので,それぞ れの場合を考える。 積の法則 525 50円硬貨 10 枚の使い方は, 0~10枚の11通り 10円硬貨3枚の使い方は, 0~3枚の 4通り 11×4=44 (通り) より (あるから、(00円) 100円硬貨1枚」 と 「50円硬貨2枚」のとき同じ のverがある。 金額 「100円」 を表すので、 「100円硬貨4枚」を「50円 硬貨8枚」と考える。 どの硬貨も使わない 「0円」の場合を引く. 30 もとの50円硬貨 2 枚と,100円硬貨を 50円硬貨とした8 枚の計10枚 第6章 よって,「支払い」は1円以上より, 求める総数は,積の法則 44-1=43 (通り) 「0円」の場合を引く. Focus 一般に, 「100円1枚は50円2枚」 のように小さい金額の硬貨とし て考えると, 支払える金額は一通りに表せる 謎》例題 157 (1) では 「10円硬貨が2枚」 なので、30円や90円など、表すことができない金 額がある.

写真2枚目の矢印の部分は変形してはダメなのですか？ 教えてください。

花と 3-3 次の不等式をみたすxの範囲を求めよ。 a(x-a) <x-1

二枚目の赤い線を求めるときの、三枚目にある黄色いところ(MUが2MPに変わるところとATが1/2AUに変わるところと)がどうなっているのかわからないので解説お願いします

取り組み時間のめやす 約20分 大問番号 4 ((014) (24) (a,b) M(2,0) (to) 4 B(4,4) R(a+4,6+2) (A(40) x すこ できる 0 を原点とする座標平面上に, 5点A(4,0), B (4, 4), C(0, 4), M(2,0), N (2, 4) がある。 また、3つの動点P(a, b), Q(a+4, 6-2), R(a+4,6+2) があり, 点Pは長方形 OMNC の 周上を0M→N→C の順に、毎秒1の速さ で動く。 4 点Pが出発してt秒後において, 正方形 OABC と△PQR の共通部分の面積をS(t) とする。 ただし, 0≦t≦8である。 a (a+4, b-2) Q

3番の問題です。マーカーが引いてあるところの式の変換が分かりません。お願いします🙇🏻‍♀️

38 数列 {an}において (1)一般項an を求めよ。 (3) 1を求めよ。 k=1 ak Set Up ak n(n+3) が成り立つ。 k (2) 24h を求めよ。 第13章 数列 79

1番の問題でマーカーが引いてある部分がなぜこうなるのかが分かりません。教えて下さい🙏🏻

38 数列{az} において (1) 一般項 αを求めよ。 (3) 1 1 を求めよ。 k=1ak 2 ak k=1 k = n(n+3) Set Up が成り立つ。 (2) 2chを求めよ。 k=1 第13章 数列 79 00000 [東京薬大]

(2)において、「来月で」を英語で表すとin next monthなのになぜこの問題においては前置詞のinがないのですか？教えて欲しいです🙏

4 friends since then. His hobby is photography. He (take) photos since he was seven. He is very talented and 5(win) three prizes in photo contests so far I am proud of him and I like talking with him これまでで about his photos. However, he (be) very busy lately, so I ' (not see) him for a while. used 3()内の語句を参考にして,次の日本文を英語に直しなさい。 1) あなたは今までに流れ星を見たことがありますか。 2) 来月で, トムがここに住んで2年になります。 (shooting star) 3) 彼らは明日の今ごろは, シドニーに到着しているでしょう。 (Sydney) 2 4) その雑誌を読み終わったら, 私に貸してください。 (magazine) 5) そのコンサートに行くまで, 私は一度もクラシック音楽を生で聴いたことはな かった。 (live classical music 「生のクラシック音楽」) Let's あなたが何回か行ったことのある場所について, 3文で書いてみよう。 例) I have been to Nara twice. I went there with my family write about... and visited many temples. I went there on my school trip, too. 97

vision questⅡ English expression hope 70ページ preview 1.date&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listeningtask 1.... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

vision questⅡ English expression hope70ページ preview 1.date&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listening task 1.... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

vision questⅡ English expression hope70ページ preview 1.dates&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listening task 1... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

vision questⅡ English expression hope83ページ A.B.C.、1.2.3答え教えて下さいお願いします。 コメント待ってます。

Practice 次のパラグラフの下線部①~③に入る適切なものを,下のA.C. の中から選びなさい。 Some people like to travel within Japan, Part There are some important differences between the two types of trip. It usually takes much ② more time to travel to overseas destinations than to domestic ones. whereas you need to speak at least a little of the language spoken ③ in the country or English during a trip abroad. Traveling abroad, " enables you to experience very different cultures. A. unlike traveling within Japan B. while others prefer to travel abroad C. you can communicate in Japanese when traveling in Japan 1 ( ② ( ) © ( ) 11-#t パラグラフを完成させなさい。