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数学 中学生

3番が解説読んでも全然分かりません。 比を求めるとき、どうして3×3:7×5になるのでしょうか。 比だから2分の1しなくてもいいということなのですか??

ニ-m) n= 21n =12…② m.nば壁取々ので ②きり (M:n)=4.12)2.6)(3.な- 「Aoの段き=BCaTesたあてはまる数を答えよ。っ+ロ):ロ= 4/ 5-1 放物線と直線 必 勝例 題 AB:=(-2+4 >X古×(-2)x4 =X+4/ 1.図1において、 直線ABの方程式および△0ABの面積を求めよ。 クて1= ドx9x%=DS 2. 図2において、 3.図3において、 点Aの×座標は3, ABの傾きは一, ACの傾きは今である。 ABの便きー文より このとき、△ADEと四角形BCEDの面積比を求めよ。 図1 y=ラ× yーラス ACoき士り bー4: ネ-=(E49)子 図3 2 図2 y=ラx 2 y y B 4C=-2 イ傾き1 B D A 低3-2 A(2,2) > X 0| 2ロ E (-2.2) B > X X 16 b cO 3 B ABと×軸は平行, BC//0A A / 確認問題 C 1.右の図において、次の問いに答えよ。 y y =x? tnらCは S-x(-2)x3 AADE :AABく =3x3:7x5 (1) △OAC :△0BC=2 : 3であり、直線ABの 傾きが1のとき、点Cの座標を求めよ。 1.(-2at3a) = 1 '.a=1→Az=-2.Bx=3" = 6 =9:35 :AAPE:BCEP =9:(35-9) =9:26。 (2) 点Cの座標が(0,12)であり、点Aおよび点Bが (0.6)// 格子点であるとき、 直線ABの傾きの取りうる値 をすべて求めよ。 ただし、 直線ABの傾きは正とする。 Ax= -m, Bx= n とおくと 1:(-mt%)=1 -m+n=l → X 正2 -2a 0 3a ー1(-m).n= 2nn=12…@.m.nはるヌタの ④まり (m.n)=a.12)(2.6)。 RF)き い41を でtn (y 1

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英語 中学生

日本語の意味が分かりません💦 教えて下さると助かります! すみませんがお願いします!

【ゆりさんのスピーチ】 Do you know that a lot of people in Shiga Prefecture have worked as volunteers? I read about it in the newspaper and I thought of one person, Mr. Ikeda. I think most of you know him. He lives near here and he takes care of the flowers along the road to our school. One day, I said to him, “Thank you very much for taking care of the flowers. beautiful.” He smiled and said to me, “It's my pleasure. I'm glad that you I like seeing them. They're very enjoy O them. It's only a small thing, but I wanted to do it for the people in our town.” I wanted to do something for other people like Mr. Ikeda. So I decided to clean the lakeshore whenI take a walk every morning. When I walk along the lakeshore, I always enjoy the beautiful view. I ② (enjoy / to / wanted / everyone ) the beautiful view of Lake Biwa like me. While I am picking up garbage on the lakeshore, many people say to me, “Thank you.” When I hear that, I am very happy. After strong winds, the lakeshore gets very dirty. Cleaning it is hard, but I don't feel tired because 3) When I was a child, I only did things that other people asked me to do. Through this experience, I've learned that it's important to decide what to do for others by myself. Aweek ago, I had another wonderful experience. When I was cleaning the lakeshore, I met a woman who was doing the same thing. She said to me, Thank you for keeping the lakeshore clean. I see you when I take a walk every morning. I was moved, so I began to clean like you.” I was glad to hear that. I found that even a small thing can move people if we do it for others. I also learned that volunteer work will spread to other people in this way. I hope everyone will do something for other people like Mr. Ikeda. (注)It's my pleasure. どういたしまして。 lakeshore 湖岸 view 眺め garbage ごみ dirty よごれた by myself 自分で move (d) move(感動させる)の過去分詞形

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英語 中学生

わかりませんでした、、、 なんでこうなるのか、わかる方教えてください!①②わかりません、、、

2 次の英文は,康平(Kohei)と仁美(Hitomi) が, スミス先生(Ms. Smith) と会話を している場面である。これを読んで, 後の各問に答えよ。 Ms. Smith: Hi, Kohei and Hitomi. Kohei: Hello, Ms. Smith. Hitomi: Hello. How did you spend your weekend, Ms. Smith? I visited a kominka cafe to have lunch. Ms. Smith: Kohei: What is a kominka cafe? Ms. Smith: It's a cafe in a traditional Japanese house. I'll show you the picture. Kohei: Is this the old house near the park? DI didn't (what, was, to, know, it ). CAFE Hitomi: Oh, I know this cafe. I went there with my grandmother. The house looks old, but the inside is fashionable. It is a relaxing place. Ms. Smith: Hitomi: My grandmother and I ate a matcha parfait there. She loves matcha but a matcha parfait was new to her. Kohei: That's interesting. I like matcha chocolates and matcha cakes, too. Today a lot of people enjoy matcha in new ways. Yes. Both a kominka cafe anda matcha parfait are examples of traditional Ms. Smith: things used in different ways. Hitomi: It's a good idea to use traditional things in new ways. Ms. Smith: Right. We can do that by looking at them from a different point of view. Then we will appreciate them more. Hitomi: That's true. 2I became interested in traditional Japanese houses around (1, after, went, us, of ) to a kominka cafe. Kohei: There are many other traditional things. I want to find new ways to use them. 古民家カフェ 内部 おしゃれな リラックスできる 抹茶パフェ ものの見方 よさがわかる (注) kominka cafe inside fashionable relaxing matcha parfait point of view appreciate

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