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数学 中学生

見えずらくてすみません🙇 緑色のところ、なぜ20や10で引くのか頭ではわかってるつもりなんですけど上手く言葉にできません 言葉で説明お願いします!‪‪💦‬

A市. B市の水道料金について調べた。 A市, B市の1か月の水道料金は、基本料金と ○ 用量ごとの料金をそれぞれ表したものである。 下の図は, A市における1か月の使用量と 量ごとの料金を合計したものであり、 次の表 1. 表2は, A市, B市の1か月の基本 料金の関係をグラフに表したものである。 B市の1か月の水道料金は、使用量が 30m'までの範囲と30m"をこえた範囲で、それぞれ使用量の1次関数であるとみなさ る。 6 表1 基本料金 A市の1か月の基本料金と使用量ごとの料金 1000円 1000円 (円) 7000円 6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500円 表2 B市の1か月の基本料金と使用量ごとの料金 基本料金 使用量ごとの料金 0m²から10m²までの分 使用量ごとの料金 0円 10m²をこえて20m²までの分 1m²あたり150円 20m²をこえた分 1m²あたり200円 0m²から30m²までの分 30m²をこえた分 1m²あたり100円 |1m²あたり200円 0 5 10 15 20 25 30 35 40 (m²) 2月 3月 月 1月 使用量 25m² 20m² A fi このとき,次の (1) (2)の問いに答えなさい。 (1) A市において, 1か月の使用量が17m²であるときの水道料金を求めなさい。 (2) 1月から6月の使用量が下の表3であるとき. この期間について, A市の水道料金の合計と B市の水道料金の合計を比べたら,どちらの市の水道料金の合計のほうがいくら安くなるか答 えなさい。 表3 4月 5月 6月 30m² 28m² 22m² 32m² B Still (14) 2 (人

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英語 中学生

現在完了形の問題です。 わかる方、答えを教えてほしいです。 お願いします!

第9章 OO 1 次の[ ]に入れるのに適するものをアーエから選びなさい。 (1) I have never [] to Kyushu. 7 be was ウ I been 1 am (2) A: Have you finished your homework ? B: [ ) (3) A: B: I've been here for a week. Yes, I am. 1 No, I have. 7 Yes, I do. How [ ] have you been here in Japan ? STEP 2 OO (1) 1 long far 7 high (4) A: Can you come and help me? B: I'm sorry I can't. I [ 7 have 1 haven't (5) A: I read I Am a Cat "written by Natsume Soseki last week. ] It was very interesting. B: [ 7 I've read it, too. I couldn't read it. (2) a a I fast I has been-since b ). 2 次の文の()に入る語句の組み合わせとして最も適切なものを選びなさい。 ) to the United States ( (1) I have ( 7 gone-then 1 been-before (2) My mother ( 7 is-while ) finished my homework yet. has I didn't I've never read it. I I don't want to read it. I Not yet. ) sick in bed ( 1 got-before became-when visited-already b I lost my bike, and I don't have it now. my bike. 4 次の日本文の意味を表す (1) 彼はいつから学校を How (2) しばらく会わないう You've grown so (3) その列車はちょう The train (4) 私たちのチームに Our team rained here for a month. *** ) last winter. is-during 3 次の各組の文がほぼ同じ意味になるように, He died five years ago. He for five years. His mother became sick last week. She is still sick now. His mother sick since last week. We have had no rain here for a month. (3) 5 次の()内の語を す。 (1) I have (Tok I have に適する語を書きなさい。 I writte (2) He (years He (3) Have (to Have (4) (about (5) (I/m 6 次の場合 相手が 7 次の (1) ど (2) (3) 語句 be

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英語 中学生

32、33、34、35がわからないです。 教えてくださいませんか? メチャクチャ急いでます

の英文の内容に関して (31) から (35)までの質問に対する答えとして最も 4[C] 切なものを 1,2,3,4の中から一つ選び、その番号のマークをぬりつぶしなさい。 Abbie Burgess About 200 years ago, there were no airplanes or trains in the United States, so people used ships to travel. Some areas were very dangerous for ships, so lighthouses* were built in these places. At night, people on ships knew they had to be careful when they saw the light on the top of a lighthouse. The people who took care of lighthouses were called lighthouse keepers, and their job was very important. In 1853, a 14-year-old girl named Abbie Burgess moved to an island in Maine with her family. No other people lived on the island, and Abbie's father was the lighthouse keeper. Abbie helped her father in the lighthouse. She learned how to clean the lights in the lighthouse and do many other things. The lights had to shine* brightly until morning. Just before winter in 1856, Abbie's father had to leave the island to buy food. He had to go 25 miles by boat to get to the nearest town. He told Abbie to take care of their family and the lighthouse. After he left, a big storm came, and it was the biggest storm in 100 years. It rained and snowed for four weeks, so Abbie's father could not return to the island. Abbie took care of the lighthouse by herself for one month. Finally, Abbie's father came back. He was very happy because his family was safe. Abbie did a great job. Her work saved many people's lives. Abbie became the assistant* lighthouse keeper in 1862. EDEL *lighthouse: T *shine: 3 assistant: 補佐の (31) What did lighthouses do? 1 They helped ships to find other ships. 2)They told ships about dangerous areas. 3 They told people that storms were coming. 4 They helped people on land at night. (32) When did Abbie Burgess move to the island? 1 in 1852. 2 In 1853. 3 In 1856. 4 In 1862. (33) Why did Abbie's father have to leave the island? 1 To get food. 2 To find a job. 3 To see his family. 4 To help people on a ship. (34) How long was the big storm? 1 One week. 2 About two weeks. 3 About a month. 4 100 days. (35) What is this story about? 1 The oldest lighthouse in the United States. 2 A young girl who took care of a lighthouse. 3 People traveling by ship in the 1800s. 4 A famous island in Maine.

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