数学Iです。 赤線のところで、どうしてzなんですか？ xやyじゃダメなんですか？

[黄チャート数学Ⅰ EXERCISES30] ある物質を水で溶かした 1% 5%, 10% の水溶液がある。 これら2種または3種の水 溶液を混ぜ合わせて, 7.3%の水溶液を100g 作る場合, 1% 水溶液は何まで使用す ることが可能か。 また, 10% 水溶液の使用にはどのような制限があるか。 解答 1% 水溶液は 30g まで, 10%水溶液の使用は46g 以上 70g 以下 1%,5%, 10% の水溶液の使用量をそれぞれxg, yg, zg とすると,問題の条件から x+y+z=100 ...... 0.01x + 0.05y + 0.1z = 0.073×100 x+5y+10z=730 から ①から z=100-x-y これを③ に代入して x+5y+10(100−x−y)=730 よって 9x+5y=270 ≧0であるから 5y=270-9x≧0 これを解いて x30 よって, 1% 水溶液は30gまで使用可能である。 また,①から y=100-x-z これを③に代入して x+5(100-x-z) +10z=730 よって -4x+5z=230 x≧0であるから 4x=5z-230≧0 これを解いて z≥46 ③①から 4y+9z=630 0であるから これを解いて 4y=630-9z≧0 z≤70 ...... 5 46≤ Z ≤70 ④ ⑤ の共通範囲を求めて ゆえに, 10% 水溶液の使用は 46g 以上 70g以下に限られる。

答えはdoes something likeです。 なぜですか?

3 Ms. Kato comes in and talks to the students.) Ms. Kato: Hi, how's your *meeting going? Mike Oh, hello, Ms. Kato. All three of these activities look good. Now we're going to read the ideas as in the answer, "Other." Ms. Kato I see. That's a good idea. And why don't you try *combining some of them? Then maybe you can *create better idea. For example, if you combine "Music" and "Sports," you can create "*Rhythm exercises." Satoshi Sounds great! My grandfather [something / like / does] that every day. He says it's better for his *health than doing hard sports. Mike: Ms. Kato: *Not at all. I think you can make a good plan. Thank you, Ms. Kato. We'll try combining some other activities, too. Riho: Look, Look, this student wrote, Now let's check the ideas in the "Other" answers. "Quiz." think we can use this with some other ideas. For example, we can make a quiz about both old and new music. Mike: That's a great idea, Riho! Let's see the other ideas and think some more! [注] meetingu

どなたか3️⃣と4️⃣教えていただけませんか😭仮定法です😭😭

T246 T247 とがあれば 話し手の判断 T248 T249 T250 T251 T252 過去完了] 仮定法 ] S EXERCISE (26) 1 意味の通る英文になるように,[] の語句を並べかえて全文を書きなさい。 T254 T255 T256 (1) [ change / should / he / his plans / if J, he would tell us.. tury foods of monob off (2) [were/travel/to/ you / if] around the world, where would you go first? MIT installo shit toven i (3) [learn/if / to / my father / this / were / about J, he would be angry at me.wat (4) [ miss/ should/I/ this train / if ], I would be late for school. 次の英文を日本語にしなさい。 (1) Were I your mother, I would say the same thing to you.. (2) But for your advice, we would have lost the final match. that for hib M 18+ on D 「 (3) I went to the station by bike; otherwise I would have missed the train. dband blios 10 baum lelas of notally vud of smil aluil bed I (4) To talk with Nancy, you would realize that she is very friendly. beband shashate wet ①. se that she is 3 各組の英文がほぼ同じ意味になるように,( )に適切な語を入れなさい (1) (a) Were I you, I would apologize to Nick. (b) If ( ( ( mable ), I would apologize to Nick. Tim now. ) ( ho) that train, we would have gotten there in time. ) this river, they couldn't grow rice. (2) (a) Had we caught that train, we would have gotten there in time. Ins (b) If ( ) ( (3) (a) But for this river, they couldn't grow rice. (b) If it ( ) ( ) ( 4 日本語の意味に合うように,( )に適切な語を入れなさい。momari io lo dok (1) もう彼らは決心してもよいころだ。 ) they ( ) up their minds. d inoriw au etieiv ryanoh (2)もっと時間があれば、私たちのチームは準決勝で勝てたのに。 Tol suzunufo It's ( ) more time, our team ( (3) それが本当だったらなあ! If ( ) it ( ) true! 日本語の意味に合うように、英文を作りなさい。 )( )( ) the semifinal match. 00 regras >] stup 91 mam ar to no TRY A: (そろそろ寝る時間ですよ) B: Ican't. This game is too interesting!

至急、この英語の問題全て教えていただきたいです！ よろしくお願い致します🙇‍♀️

EXERCISE B 英文には誤りが1箇所ずつある。番号を指摘し, 正しく直しなさい。 □01 ③ The older I get, the least romantic I feel. ④ 201 rod all I STE < 東洋大 > vidgid arbenie wode,blowtoo 02 Although it is neither new nor big, the house we bought is one of the most elegant building in this city. 19 Traveling by air twice e diola no 〈北里大 >

この文章を35~40単語でわかりやすく要約して欲しいです

The Story of Holly Butcher 目標時間2分11秒 act Part 1 haky A 本文をスラッシュ(/)の区切りに注意して読んでみよう。また、必要な書き込みをしよう A Note Before I Die ●込もう。 abioW weИ [1] I've had a lot of time / to think about life / these past few months, and I want to share/ some of my thoughts. It's a strange thing / to realize and accept / that you're mortal/ at the age けて単! 2b10W w9M of 26. But the clock keeps ticking / and I know / death is fast approaching. I always imagined myself growing old / with wrinkled skin and grey hair / after raising a beautiful and loving family. Even now / I still want that so bad / that it hurts. [2] Life is fragile, precious, and unpredictable, and each day is a gift, / not a given right. I'm 27 years old now. I love my life and I am happy. I don't want to leave the world, / but that decision is out of my hands. [3] I'm not writing “A Note Before I Die" / so that people will fear death. In fact, it's good/ that we are not constantly thinking / about its inevitability. For the most part, / death is often considered a "taboo" topic, / especially among young people. I want people to remember/ that we all suffer the same fate / in the end. So, stop worrying / about the little issues/ that cause meaningless stress / in everyday life. Whenever you start complaining / about unimportant things,/think about those people / who are actually facing serious problems / and be grateful/ that your problems are minor ones. Take a deep breath of the fresh air, / and be thankful/that you are able to breathe it in. 1. H OP 訳 2. 22 訳 3. 33 activity B 各段落のトピック

SVOの文章のとき（このVはbe動詞ではない） 副詞はSとVの間または文末に来ますよね？ この問題ではwith以降は選択肢を考えるにあたって無視できるので、実質文末に副詞が来るタイプの問題ということですか？？

12. Mr. Yashima spoke ------- with the vice president about his decision to step down as CEO. (A) exclusively (B) exclusive (C) exclusivity (D) exclusiveness

動名詞の問題です。1、2、3の例文を教えてください。

Give It a Try Write about yourself. Use "doing or to do." 1) I enjoy 2) 3) I plan in my free time. is good for my health. on my next vacation.

教えてください🙇‍♀️

FL B 1.~4.に続く最も適切なものを (a)~(d) から1つずつ選びなさい。(2点×4=8点) 1. Don't forget [ 2. The doctor advised [ 3. She is said [ 4. George was forced [ (a) to have been a very popular singer ]. ]. (b) to go home against his own will ]. ]. (c) to take your umbrella with you when you leave (d) him to get more exercise

解き方を詳しく教えてください( * . .)”

EXERCISES ③ 12 次の和を求めよ。 3n k=2n (3k2+5k-1)

⑷の棒線部の訳がわかりません。問4が答えです。主語はないのですか？

23 15m 20 min. 362 words 次の英文を読んで、設問に答えなさい。 (1) A lot of people think cancer is the number one killer in the United States, but it's not. The leading killer is heart disease. Cancer is number two. Heart disease is responsible for about one-quarter of the deaths in the U.S. each year. Heart attacks (2a) account for over 500,000 deaths a year. One 5 reason the number of deaths from heart attacks is so high is that when people experience chest pain, they don't realize they may be having a heart attack and wait too long before going to the hospital. Such a delay can be fatal. (3a)- In fact, more than half of all heart attack victims die before they reach the hospital. 10 What are the warning signs of a heart attack? According to the American Heart Association, the signs include uncomfortable pressure or pain in the middle of the chest for two minutes or longer; movement of pain to the shoulder, arm, neck, or jaw; sweating may accompany the pain; *nausea and vomiting may 15 also occur; and shortness of breath, dizziness, or fainting may be experienced with the other signs. (3b) One of the factors that increase the risk of heart attack is high blood pressure. Today, with the stresses of everyday life, nearly one out of every three adults suffers from high blood 20 pressure. High blood pressure can be brought on by a fight with one's *spouse, problems at work, (2b) speaking in public, or even telling a lie. But it can also be brought on by something you enjoy, like the caffeine in a cup of coffee, cigarettes, or alcohol. There are, fortunately, ways to lower blood pressure - ways 25 Introduce