わかりません教えて下さい。

X- 2x - 3y + 5 +) - 3x + 5y - 3 5x + 2y +) -5x - 3y

緊急なのでお願いします。 (3)の問題の解説お願いします。

第12回 割合と比 トレーニ ☆次の各問いに答えなさい。 □ (1) 52cm は, 80cmの何%にあたりますか。 □ (2) Aの4割とBの2が等しいとき、AとBの比を求めなさい。 □ (3) 50円と100円玉がたくさんあります。 50円玉だけの合計金額と100円玉だけの合計金額の まい 比が47のとき, 50円玉と100円玉の枚数の比を求めなさい。

なぜこの答えになるのかを教えてください

ぎゅうにゅう コーヒー牛乳を1500mL作ります。 コーヒーと牛乳を3:2 の割合で混ぜるとき、 DAS かんけい コーヒーの量をxmLとします。 等しい比の関係を使うと次の ようになる。 x 300 ひつよう 必要なコーヒーの量を求めましょう。 3:5=x : 1500 x 3×300 1900 x 300 排 900mL 次へ

この問題のやり方や説明を教えてください

④ 3.5Lのお茶を,やかんとポットに分けて入れ ます。 やかんとポットのお茶の量の比を4:3にす るには,それぞれ何Lずつに分けたらよいですか。 セット それぞれ全体の何倍になるかな?

小５、倍数、公倍数がわかりません😭

5 (4,7 ) → ( 次の3つの数の公倍数を小さい順に3つ書きましょう。 (2,3,4 ) → ( ) ) → ( (2,3,5 ) → ( ) → ( 2 (2,6,9 ) (6,7 ) → ( 4 (2,6,8

Name Date MENTAL MATHS QUIZ 4:2 ANSWERS 1) 500 + 4 + 70 574 2) Half of 30 15 3) What is this triangle called? right angle triangle or rig... Read More

Name MENTAL MATHS QUIZ 4:2 ANSWERS 500 + 4 + 70 Half of 30 What is this triangle called? 1) 2) 3) 4) 5) 6) 7) 8) Date 15) 30-16 What is the value of the digit 7 in the number 1726 Double 14 5 x 6 Write down all the odd numbers from the list below 42, 37, 21, 26, 38, 63 Round 67 to the nearest 10. 9) 10) What number comes halfway between 30 and 50? 11) How many FIVES make 30p? 12) The time is 4:30pm. What will the time be in half an hour? 13) How much money is 3 TENS and 3 FIVES? 14) What fraction of this shape is shaded? I am facing north. I turn 2 half turns. Which way am I facing now? 16) How many cm in 7 metres? Free Math Sheets, Math Games and Math Help ATH-SALAMANDERS.COM 574 15 right angle triangle or right triange 14 700 28 30 37,21,63 70 40 6 5:00pm 45p 3/5 north 700

Name Date MENTAL MATHS QUIZ 4:2 ANSWERS 1) 500 + 4 + 70 574 2) Half of 30 15 3) What is this triangle called? right angle triangle or rig... Read More

Name MENTAL MATHS QUIZ 4:2 ANSWERS 500 + 4 + 70 Half of 30 What is this triangle called? 1) 2) 3) 4) 5) 6) 7) 8) Date 15) 30-16 What is the value of the digit 7 in the number 1726 Double 14 5 x 6 Write down all the odd numbers from the list below 42, 37, 21, 26, 38, 63 Round 67 to the nearest 10. 9) 10) What number comes halfway between 30 and 50? 11) How many FIVES make 30p? 12) The time is 4:30pm. What will the time be in half an hour? 13) How much money is 3 TENS and 3 FIVES? 14) What fraction of this shape is shaded? I am facing north. I turn 2 half turns. Which way am I facing now? 16) How many cm in 7 metres? Free Math Sheets, Math Games and Math Help ATH-SALAMANDERS.COM 574 15 right angle triangle or right triange 14 700 28 30 37,21,63 70 40 6 5:00pm 45p 3/5 north 700

Name Date MENTAL MATHS QUIZ 4:2 ANSWERS 1) 500 + 4 + 70 574 2) Half of 30 15 3) What is this triangle called? right angle triangle or rig... Read More

Name MENTAL MATHS QUIZ 4:2 ANSWERS 500 + 4 + 70 Half of 30 What is this triangle called? 1) 2) 3) 4) 5) 6) 7) 8) Date 15) 30-16 What is the value of the digit 7 in the number 1726 Double 14 5 x 6 Write down all the odd numbers from the list below 42, 37, 21, 26, 38, 63 Round 67 to the nearest 10. 9) 10) What number comes halfway between 30 and 50? 11) How many FIVES make 30p? 12) The time is 4:30pm. What will the time be in half an hour? 13) How much money is 3 TENS and 3 FIVES? 14) What fraction of this shape is shaded? I am facing north. I turn 2 half turns. Which way am I facing now? 16) How many cm in 7 metres? Free Math Sheets, Math Games and Math Help ATH-SALAMANDERS.COM 574 15 right angle triangle or right triange 14 700 28 30 37,21,63 70 40 6 5:00pm 45p 3/5 north 700

Name Date MENTAL MATHS QUIZ 4:2 ANSWERS 1) 500 + 4 + 70 574 2) Half of 30 15 3) What is this triangle called? right angle triangle or rig... Read More

Name MENTAL MATHS QUIZ 4:2 ANSWERS 500 + 4 + 70 Half of 30 What is this triangle called? 1) 2) 3) 4) 5) 6) 7) 8) Date 15) 30-16 What is the value of the digit 7 in the number 1726 Double 14 5 x 6 Write down all the odd numbers from the list below 42, 37, 21, 26, 38, 63 Round 67 to the nearest 10. 9) 10) What number comes halfway between 30 and 50? 11) How many FIVES make 30p? 12) The time is 4:30pm. What will the time be in half an hour? 13) How much money is 3 TENS and 3 FIVES? 14) What fraction of this shape is shaded? I am facing north. I turn 2 half turns. Which way am I facing now? 16) How many cm in 7 metres? Free Math Sheets, Math Games and Math Help ATH-SALAMANDERS.COM 574 15 right angle triangle or right triange 14 700 28 30 37,21,63 70 40 6 5:00pm 45p 3/5 north 700

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