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第三個步驟
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以下是阿平解二元一次聯立方程式的過程: 第一個步驟:由(1)式得2y=1+x(3) 第二個步驟:由(3)式代入(2)式,得3x1+x=17 第三個步驟:化簡得4x=16,x=4 第四個步驟:將x=4代入(3)式,得 y= 請問:阿平在哪一個步驟開始發生錯誤?
16人
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教室中有男生x人、女生y人,若男生眼中所見的男生人數比女生人數多8人,且女生眼中所見的男生人數 為女生人數的2倍,則男生有多少人?【註:眼中看出去並未看到自己】
依題意可列出二元一次方程式為10x+y=10y+x-36
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阿中去 便 利 商 店 買了一包零食,她把定價的個位數字和十位數字看反了,拿了剛好的錢數給店員,結果店員 找給她36元。設定價的十位數字為x、個位數字為y,則下列敘述何者正確?【素養導向】
8組
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若x、y皆為正整數,則二元一次方程式x+4y=36的解有幾組?
5
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假設x=5,y=-1,則2x+5y=?
B(-3,3)
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坐標平面有一點A(2 ,1),若從A點出發,向左3個單位,再向下2個單位,到達B點,則B點坐標為何?
1個
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下列敘述(甲)〜(丁)正確的有幾個? (甲)4x+6y是一個二元一次式 (乙)x軸上的任意一點,其橫坐標一定是0 (丙)點(a ,a)不是在第一象限就是在第三象限 (丁)坐標平面上,點P(a ,b)到x軸的距離為b
Twelve.
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Violet-red and green-yellow. 37. How many tertiary colors are there in the color wheel?
ski 滑雪 suddenly 突然地 dispatcher 救護員 move 移動 sometimes 有時候 save 拯救 Adapted from https://www.nytimes.com/2023/02/03/health/apple-watch-911-emergency-call.html 32. What can be Copper Mountain, Keystone, and Silverthorne? 【素養導向】
Sarah lives is Taiwan. Does she do anything special for the coming New Year? First, she writes spring couplets and puts them on the wall and at the door. Second, she cleans her house. Third, she draws postcards for her family and friends. There are four rabbits on every card, and she draws fifteen cards in total. This year, the New Year holiday begins on January 15. Everyone has a ten-day vacation. People in Taiwan are all excited about it. 29. How many rabbits does Sarah draw in total? 【素養導向】
Visit the Grasslands There are grasslands all over the world. __24__ large and flat. Flowers grow there, and trees __25__, too. Plants need sunlight and water to grow, and __26__ animals eat them. This __27__ animals energy. There are some must-know animals on the grasslands in Africa. They are giraffes, zebras, lions, and cheetahs. But the sad thing is: With overexploitation, these beautiful animals can die out __28__ thirty years. 28.
Visit the Grasslands There are grasslands all over the world. __24__ large and flat. Flowers grow there, and trees __25__, too. Plants need sunlight and water to grow, and __26__ animals eat them. This __27__ animals energy. There are some must-know animals on the grasslands in Africa. They are giraffes, zebras, lions, and cheetahs. But the sad thing is: With overexploitation, these beautiful animals can die out __28__ thirty years. 27.
Visit the Grasslands There are grasslands all over the world. __24__ large and flat. Flowers grow there, and trees __25__, too. Plants need sunlight and water to grow, and __26__ animals eat them. This __27__ animals energy. There are some must-know animals on the grasslands in Africa. They are giraffes, zebras, lions, and cheetahs. But the sad thing is: With overexploitation, these beautiful animals can die out __28__ thirty years. 26.
Visit the Grasslands There are grasslands all over the world. __24__ large and flat. Flowers grow there, and trees __25__, too. Plants need sunlight and water to grow, and __26__ animals eat them. This __27__ animals energy. There are some must-know animals on the grasslands in Africa. They are giraffes, zebras, lions, and cheetahs. But the sad thing is: With overexploitation, these beautiful animals can die out __28__ thirty years. 25.
Visit the Grasslands There are grasslands all over the world. __24__ large and flat. Flowers grow there, and trees __25__, too. Plants need sunlight and water to grow, and __26__ animals eat them. This __27__ animals energy. There are some must-know animals on the grasslands in Africa. They are giraffes, zebras, lions, and cheetahs. But the sad thing is: With overexploitation, these beautiful animals can die out __28__ thirty years. 24.
is; mean
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on every Monday morning 19. A: What _____ different _____? B: Different means not the same.
Three.
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How many tertiary colors are there in the color wheel?
Violet-red and green-yellow.
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What are the missing colors? 【素養導向】
Not ready.
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What does false mean?
100.
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How many (多少) people can be at Copper Mountain, Keystone, and Silverthorne?
Players.
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What can be Copper Mountain, Keystone, and Silverthorne? 【素養導向】
Put something red on the walls.
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What doesn’t Sarah do for the coming New Year? 【素養導向】
Sixty.
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How many rabbits does Sarah draw in total? 【素養導向】
can’t be; they
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Enid’s brothers _____ good at math. Can Enid teach _____?