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ã©ã€ã¢ã³ã¯æ¯é±ãå®¶äºãããªããš6ãã«ã®ãå°é£ããããããŸãã圌ã¯3é±éå®¶äºãããªããŸããããã®åŸãèªåãš3人ã®åéã®ããã«ããããã1.25ãã«ã®ã¢ã€ã¹ã¯ãªãŒã ã³ãŒã³ãè²·ããŸãããä»åºŠã¯ã¿ããªã§æ ç»ã«è¡ããããšæã£ãŠããããã±ããã¯äžæ6.50ãã«ã§ããã©ã€ã¢ã³ã¯äœæã®æ ç»ãã±ãããè²·ãããšãã§ããã§ããããïŒ
|
ãŸããã©ã€ã¢ã³ã3é±éã§è²°ã£ããå°é£ããèšç®ããŸãããïŒ
ãå°é£ãã¯6ãã«/é±ã§ãã®ã§ã
3é±éã§è²°ããéé¡ã¯
6ãã« Ã 3é±é = 18ãã«ã§ãã
次ã«ãã©ã€ã¢ã³ãã¢ã€ã¹ã¯ãªãŒã ã³ãŒã³ãè²·ã£ãããã«äœ¿ã£ãéé¡ãèšç®ããŸããã¢ã€ã¹ã¯ãªãŒã ã³ãŒã³ã¯1.25ãã«ã§ãã©ã€ã¢ã³ãš3人ã®åéã®4人åè²·ãã®ã§ã
1.25ãã« Ã 4人 = 5ãã«ã§ãã
次ã«ãã©ã€ã¢ã³ãæ ç»ã®ãã±ããã賌å
¥ããããã«æ®ã£ãŠããéé¡ãèšç®ããŸãïŒ
18ãã« - 5ãã« = 13ãã«ã§ãã
æ ç»ã®ãã±ããã¯1æ6.50ãã«ãªã®ã§ãã©ã€ã¢ã³ãè²·ãããã±ããã®ææ°ã¯ã
æ®éããã±ããã®äŸ¡æ Œã§å²ããŸãïŒ
13ã㫠÷ 6.50ãã«/æ = 2æã§ãã
ãããã£ãŠãã©ã€ã¢ã³ã¯2æã®æ ç»ãã±ãããè²·ãããšãã§ããŸãã
åçïŒ#### 2
| 2 |
ãšã¬ã³ãšåœŒå¥³ã®å§åйã®ã©ãã¯ãæ¯èŠªãžã®ãã¬ãŒã³ããè²·ãããã«ã¢ãŒã«ã«è¡ããŸããããšã¬ã³ã¯ã¬ã®ã³ã¹ã100ãã«ãšãã©ããã¬ãŒã ã5ãã«ã§è³Œå
¥ããŸãããã©ãã¯ãµã³ã°ã©ã¹ã30ãã«ã§ããã¹ããŒãããããã100ãã«ã§2æè³Œå
¥ããŸããã圌女ãã¡ã¯åèšã§ããã䜿ããŸãããïŒ
|
ãšã¬ã³ã®æ¯åºïŒ
- ã¬ã®ã³ã¹ïŒ100ãã«
- ãã©ããã¬ãŒã ïŒ5ãã«
åèšïŒ100ãã« + 5ãã« = 105ãã«
ã©ãã®æ¯åºïŒ
- ãµã³ã°ã©ã¹ïŒ30ãã«
- ãã¹ããŒãïŒ100ãã« Ã 2æ = 200ãã«
åèšïŒ30ãã« + 200ãã« = 230ãã«
ãšã¬ã³ãšã©ãã®åèšæ¯åºïŒ
105ãã« + 230ãã« = 335ãã«
ãããã£ãŠã圌女ãã¡ã¯åèšã§335ãã«äœ¿ããŸãããåçã¯ã####335ãã«ãªããŸãã
| 335 |
ãã£ã ã¯ç¹å¥ãªãããŒãšãžã£ã ã®ããã¯ã¹ãäœããŸãã1ç¶ã®ããã¯ã¹ãäœãã®ã«ãããã·ã§ã³ãã«ãŒãã2ãã³ãããžã£ãã¯ãã«ãŒãã1.5ãã³ãå¿
èŠã§ãããŸããç¹å¥ãªãããŒã2ãã³ãå¿
èŠã§ããããã·ã§ã³ãã«ãŒãã¯1ãã³ãããã6ãã«ããžã£ãã¯ãã«ãŒãã¯1ãã³ãããã8ãã«ããããŒã¯1ãã³ãããã10ãã«ã§ãã圌ã¯åç¶ã50ãã«ã§è²©å£²ããŸãã10ç¶ã売ã£ããšãã®å©çã¯ãããã§ããïŒ
|
ãŸãã1ç¶ã®ããã¯ã¹ãäœãããã®åææã³ã¹ããèšç®ããŸãã
1. **ããã·ã§ã³ãã«ãŒãã®ã³ã¹ã**:
- 2ãã³ã à 6ãã«/ãã³ã = 12ãã«
2. **ãžã£ãã¯ãã«ãŒãã®ã³ã¹ã**:
- 1.5ãã³ã à 8ãã«/ãã³ã = 12ãã«
3. **ãããŒã®ã³ã¹ã**:
- 2ãã³ã à 10ãã«/ãã³ã = 20ãã«
以äžã®ã³ã¹ããåèšããŸãã
- ç·ã³ã¹ã = ããã·ã§ã³ãã«ãŒãã®ã³ã¹ã + ãžã£ãã¯ãã«ãŒãã®ã³ã¹ã + ãããŒã®ã³ã¹ã
- ç·ã³ã¹ã = 12ãã« + 12ãã« + 20ãã« = 44ãã«
次ã«ã10ç¶äœãããã®ç·ã³ã¹ããèšç®ããŸãã
- 10ç¶ã®ç·ã³ã¹ã = 44ãã«/ç¶ Ã 10ç¶ = 440ãã«
次ã«ã10ç¶å£²ã£ããšãã®ç·åå
¥ãèšç®ããŸãã
- 10ç¶ã®å£²äž = 50ãã«/ç¶ Ã 10ç¶ = 500ãã«
æåŸã«ãå©çãæ±ããŸãã
- å©ç = å£²äž - ç·ã³ã¹ã
- å©ç = 500ãã« - 440ãã« = 60ãã«
ãããã£ãŠããã£ã ã¯10ç¶ã売ã£ããšãã®å©çã¯60ãã«ã§ãã
åç: ####60
| 60 |
ãžã£ã¹ãã£ã³ã®æã£ãŠããç¶ã«ã¯å€ãã®ç¡¬è²šãå
¥ã£ãŠããŸããç¶ã«ã¯ã¯ã©ãŒã¿ãŒã32æããã€ã ã95æãããã±ã«ã120æããããŒã750æå
¥ã£ãŠããŸããç¶ã®äžã®åèšéé¡ã¯ãããã§ããïŒ
|
åç¡¬è²šã®ææ°ãšãã®éé¡ãèšç®ããŸãã
1. ã¯ã©ãŒã¿ãŒã®éé¡:
32æ à 25ã»ã³ã = 800ã»ã³ã
2. ãã€ã ã®éé¡:
95æ à 10ã»ã³ã = 950ã»ã³ã
3. ããã±ã«ã®éé¡:
120æ à 5ã»ã³ã = 600ã»ã³ã
4. ãããŒã®éé¡:
750æ à 1ã»ã³ã = 750ã»ã³ã
次ã«ããããã®éé¡ãåèšããŸãã
åèšéé¡ = 800 + 950 + 600 + 750 = 3100ã»ã³ã
3100ã»ã³ãã¯ãã«ã«æç®ãããšã31ãã«ã§ãã
ãããã£ãŠãç¶ã®äžã®åèšéé¡ã¯31ãã«ã§ãã
åçã¯æ¬¡ã®ãšããã§ãã
#### 31
| 31 |
ãžã£ãããã¯ã·ã§ããã³ã°ã¢ãŒã«ã«è¡ããã¢ã€ã¹ã¯ãªãŒã ã«3.50ãã«ãèªåãšåŠ¹ã®æ ç»ãã±ããã«ãããã7.50ãã«ããã¬ã¹ã¬ããã«8.50ãã«ã䜿ããŸããã䞡芪ãã40ãã«ããã£ãŠããå Žåã圌女ã¯ãããæ®ããŠããŸããïŒ
|
ãŸãããžã£ãããã䜿ã£ãéé¡ãèšç®ããŸãã
- ã¢ã€ã¹ã¯ãªãŒã : 3.50ãã«
- æ ç»ãã±ããïŒèªåãšåйã®åã2æïŒ: 7.50ãã« Ã 2 = 15.00ãã«
- ãã¬ã¹ã¬ãã: 8.50ãã«
åèšéé¡ã以äžã®ããã«èšç®ããŸãïŒ
3.50ãã« + 15.00ãã« + 8.50ãã« = 27.00ãã«
次ã«ã䞡芪ããããã£ã40ãã«ãã䜿ã£ã27ãã«ãåŒããŸãïŒ
40.00ãã« - 27.00ãã« = 13.00ãã«
ãããã£ãŠããžã£ãããã¯13.00ãã«æ®ã£ãŠããŸãã
åç㯠#### 13.00 ã§ãã
| 13 |
ãžã§ã·ã¥ã¯è»ã®ä¿®çå·¥å Žãçµå¶ããŠããã1æ¥ã«3å°ã®è»ãä¿®çããŸãã圌ã®åºã¯æ¥ææ¥ãšæ°Žææ¥ãé€ãæ¯æ¥éããŠããŸãã1å°ã«ã€ã4ãã«ã®åå
¥ããããŸãã2é±éã§åœŒã¯ããã皌ããŸããïŒ
|
ãžã§ã·ã¥ã®ä¿®çå·¥å Žã¯ãæ¥ææ¥ãšæ°Žææ¥ãé€ãæ¯æ¥éããŠããŸãã7æ¥éã®ãã¡ãæ¥ææ¥ãšæ°Žææ¥ã®2æ¥ãé€ããšãéåºããã®ã¯5æ¥éã§ãããããã£ãŠã圌ã®åºã¯æ¬¡ã®ããã«éåºããŸãïŒ
1é±éã®å¶æ¥æ¥æ° = 5æ¥
圌ã¯1æ¥ã«3å°ã®è»ãä¿®çããŸãã®ã§ã1é±éã§ä¿®çã§ããè»ã®å°æ°ã¯æ¬¡ã®ããã«ãªããŸãïŒ
1é±éã®ä¿®çå°æ° = 3å°/æ¥ Ã 5æ¥ = 15å°
1å°ã«ã€ã4ãã«ã®åå
¥ããããŸãã®ã§ã1é±éã®åå
¥ã¯æ¬¡ã®ããã«ãªããŸãïŒ
1é±éã®åå
¥ = 15å° Ã 4ãã«/å° = 60ãã«
2é±éã§ã¯ãåå
¥ãåã«ãªãã®ã§ã次ã®ããã«èšç®ããŸãïŒ
2é±éã®åå
¥ = 60ãã« Ã 2 = 120ãã«
ãããã£ãŠããžã§ã·ã¥ã¯2é±éã§åèš120ãã«çšŒããŸãã
æçµçãªåçã¯ã####120 ã§ãã
| 120 |
ã©ã³ãã£ã¯ãªãŒãããŒã«ã¯ãããŒã9æããã§ã³ãããã¯ãããŒã4æãã·ã¥ã¬ãŒã¯ãããŒã5ææã£ãŠããŸããåœŒã¯æ©ãã®æ¥ã®ã¹ããã¯ãšããŠãåãã¬ãŒããŒãã1æãã€ãåèš3æã®ã¯ãããŒãé£ã¹ãŸãããã©ã³ãã«ã¯ãªãŒãããŒã«ã¯ãããŒã2æé£ã¹ãŸããã圌ã¯åéã«ã·ã¥ã¬ãŒã¯ãããŒã2æãããŸããããã®åŸãå€é£ã®ããã«åãã¬ãŒããŒãã4æãã€çŒããŸããã圌ã¯ä»ãäœæã®ã¯ãããŒãæã£ãŠããŸããïŒ
|
åãã«ã©ã³ãã£ãæã£ãŠããã¯ãããŒã®æ°ã¯ä»¥äžã®éãã§ãïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ9æ
- ãã§ã³ãããã¯ãããŒïŒ4æ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ5æ
ã©ã³ãã£ã¯æ©ãã®æ¥ã®ã¹ããã¯ãšããŠãåãã¬ãŒããŒãã1æãã€ãåèš3æã®ã¯ãããŒãé£ã¹ãŸããã
ããã«ãããåãã¬ãŒããŒã®ã¯ãããŒã®æ°ã¯æ¬¡ã®ããã«ãªããŸãïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ9 - 1 = 8æ
- ãã§ã³ãããã¯ãããŒïŒ4 - 1 = 3æ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ5 - 1 = 4æ
次ã«ã圌ã¯ã©ã³ãã«ãªãŒãããŒã«ã¯ãããŒã2æé£ã¹ãŸããïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ8 - 2 = 6æ
ããã«ã圌ã¯åéã«ã·ã¥ã¬ãŒã¯ãããŒã2æãããŸããïŒ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ4 - 2 = 2æ
çŸåšã®åãã¬ãŒããŒã®ã¯ãããŒã®æ°ã¯ïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ6æ
- ãã§ã³ãããã¯ãããŒïŒ3æ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ2æ
å€é£ã®ããã«ãåãã¬ãŒããŒãã4æãã€çŒããŸããçŒããã¯ãããŒã®æ°ã¯æ¬¡ã®éãã§ãïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ4æ
- ãã§ã³ãããã¯ãããŒïŒ4æ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ4æ
çŒããåŸã®ã¯ãããŒã®æ°ã¯ïŒ
- ãªãŒãããŒã«ã¯ãããŒïŒ6 + 4 = 10æ
- ãã§ã³ãããã¯ãããŒïŒ3 + 4 = 7æ
- ã·ã¥ã¬ãŒã¯ãããŒïŒ2 + 4 = 6æ
æçµçã«ã©ã³ãã£ãæã£ãŠããã¯ãããŒã®ç·æ°ã¯ïŒ
10 + 7 + 6 = 23æ
ãããã£ãŠãã©ã³ãã£ã¯ä»ã23æã®ã¯ãããŒãæã£ãŠããŸããçãã¯ã####23ãã§ãã
| 23 |
ãã·ã¥ãŒã¯12äœã®ãŠããŒã¯ãªããã¡ãã®å
µå£«ãæã£ãŠããŸãã圌ã¯ãããã驿£äŸ¡æ Œã§å£²ããããšèããŠããŸãã圌ã¯ãã³ã¬ã¯ã·ã§ã³ã®ååã«ã€ããŠã¯1äœããã5ãã«ãæ®ãã®ååã«ã€ããŠã¯1äœããã7ãã«ãæ¯æããšããæ¡ä»¶ã§è³Œå
¥ããææãããè²·ãæãèŠã€ããŸããããã·ã¥ãŒããã®ãªãã¡ãŒã«åæããå Žåã圌ã¯ããã皌ãããšãã§ããã§ããããïŒ
|
ãã·ã¥ãŒã¯12äœã®ããã¡ãã®å
µå£«ãæã£ãŠããŸãã圌ã¯ãããã2ã€ã®ã°ã«ãŒãã«åããŸãã
- ã°ã«ãŒã1ïŒååïŒïŒ12äœã®ååã¯6äœã§ãããããã¯1äœããã5ãã«ã§å£²ãããŸãã
- ã°ã«ãŒã2ïŒæ®ãã®ååïŒïŒæ®ãã®6äœã¯1äœããã7ãã«ã§å£²ãããŸãã
ããããã®ã°ã«ãŒãã§åŸãããéé¡ãèšç®ããŸãã
1. ã°ã«ãŒã1ã®åå
¥:
\[
6 \text{äœ} \times 5 \text{ãã«/äœ} = 30 \text{ãã«}
\]
2. ã°ã«ãŒã2ã®åå
¥:
\[
6 \text{äœ} \times 7 \text{ãã«/äœ} = 42 \text{ãã«}
\]
åèšåå
¥ã¯æ¬¡ã®ããã«èšç®ããŸã:
\[
30 \text{ãã«} + 42 \text{ãã«} = 72 \text{ãã«}
\]
ãããã£ãŠããã·ã¥ãŒã¯åèš72ãã«ã皌ãããšãã§ããŸãã
æçµçãªçãã¯ä»¥äžã®éãã§ãïŒ
#### 72
| 72 |
ãã€ãã®ç¬ã¯1æ¥ã«6ã€ã®ç©ŽãæããŸãããã€ããäŒæäžã®14æ¥éãç¬ã¯æãç¶ããŸãããã€ããåž°å®
ããåŸã圌ã¯1æ¥ã«9ã€ã®ç©Žãåãå§ããŸãããç¬ã¯æ¯æ©æ°ãã«6ã€ã®ç©Žãæãç¶ããŸããå
šãŠã®ç©Žãåããã®ã«äœé±éããããŸããïŒ
|
ãŸãããã€ãã®ç¬ãäŒæäžã«æãç©Žã®æ°ãèšç®ããŸãã
ç¬ã¯1æ¥ã«6ã€ã®ç©Žãæãã®ã§ã14æ¥éã§ã¯ïŒ
\(6 \text{穎/æ¥} \times 14 \text{æ¥} = 84 \text{穎}\)
ãã€ããåž°å®
ããåŸãç¬ã¯æ¯æ©6ã€ã®ç©Žãæãããã€ãã¯æ¯æ¥9ã€ã®ç©ŽãåããŸãããããã£ãŠããã€ãã1æ¥ã«åããç©Žã®æ°ã«ç¬ãæãç©Žã®æ°ãå ç®ããå Žåã1æ¥ã®ãããã®åãæ±ºããèšç®ããŸãã
ãã€ããåããç©Žã®æ°ã¯9ã€ã§ãç¬ãæãç©Žã®æ°ã¯6ã€ã§ãã®ã§ããã€ãã1æ¥ã«åãããã穎ã®å®è³ªçãªæ°ã¯ïŒ
\(9 \text{穎} - 6 \text{穎} = 3 \text{穎}\)
ããŠããã€ããåž°å®
ããåŸã«åããå¿
èŠã®ãã84穎ããããŸããããã1æ¥ãããã®ãããæ°ïŒ3穎ïŒã§å²ããŸãã
\(84 \text{穎} \div 3 \text{穎/æ¥} = 28 \text{æ¥}\)
次ã«ã28æ¥ã¯äœé±éãããèšç®ããŸãã
\(28 \text{æ¥} \div 7 \text{æ¥/é±} = 4 \text{é±}\)
ãããã£ãŠãå
šãŠã®ç©Žãåããã®ã«ãããã®ã¯4é±éã§ãã
åç: ####4
| 4 |
ããŒãã³é«æ ¡ã¯æ¯å¹Žå¹³åã§4000人ã®çåŸãåãå
¥ããŠããŸãã飿¥ããããã©ãŒé«æ ¡ã¯ãããŒãã³é«æ ¡ã®å¹³åå
¥åŠè
æ°ã®3/4ã®çåŸãåãå
¥ããŠããŸããããŒãã³é«æ ¡ã®å¹³åå
¥åŠè
æ°ã¯ããã©ãŒé«æ ¡ã®ããããã©ãã ãå€ãã§ããïŒ
|
ããŒãã³é«æ ¡ã®å¹³åå
¥åŠè
æ°ã¯4000人ã§ããããã©ãŒé«æ ¡ã®å
¥åŠè
æ°ã¯ããŒãã³é«æ ¡ã®3/4ã§ãã®ã§ãèšç®ããŸãã
ããã©ãŒé«æ ¡ã®çåŸæ° = 4000 à (3/4) = 4000 à 0.75 = 3000人
次ã«ãããŒãã³é«æ ¡ã®å
¥åŠè
æ°ãšããã©ãŒé«æ ¡ã®å
¥åŠè
æ°ã®å·®ãèšç®ããŸãã
å·® = ããŒãã³é«æ ¡ã®å
¥åŠè
æ° - ããã©ãŒé«æ ¡ã®å
¥åŠè
æ°
å·® = 4000 - 3000 = 1000
ãããã£ãŠãããŒãã³é«æ ¡ã®å¹³åå
¥åŠè
æ°ã¯ããã©ãŒé«æ ¡ã®ãããã1000人å€ãã§ãã
åçã¯####1000ã§ãã
| 1,000 |
ã¢ãã ã¹å®¶ã¯ã¯ãããŒäœãã«å¿ããã§ãããããŸã§ã«åèšã§7995æã®ã¯ãããŒãäœããŸããããã®äžã§ã2595æãã¬ã€ã³ããŒã¯ãããŒã3075æããªãŒãããŒã«ã¯ãããŒã§ãæ®ãããã§ã³ãããã¯ãããŒã§ãããã§ã³ãããã¯ãããŒã¯äœæäœãããŸãããïŒ
|
ãã§ã³ãããã¯ãããŒã®ææ°ã¯ãå
šäœã®ã¯ãããŒã®ææ°ããã¬ã€ã³ããŒã¯ãããŒãšãªãŒãããŒã«ã¯ãããŒã®ææ°ãåŒãããšã§æ±ããããŸãã
å
šäœã®ã¯ãããŒã®ææ° = 7995 æ
ã¬ã€ã³ããŒã¯ãããŒã®ææ° = 2595 æ
ãªãŒãããŒã«ã¯ãããŒã®ææ° = 3075 æ
ãã§ã³ãããã¯ãããŒã®ææ°ã¯ä»¥äžã®ããã«èšç®ããŸãã
\[
\text{ãã§ã³ãããã¯ãããŒã®ææ°} = 7995 - (2595 + 3075)
\]
ãŸãã2595 ãš 3075 ãè¶³ããŸãããã
\[
2595 + 3075 = 5670
\]
次ã«ãå
šäœã®ææ°ãããã®åèšãåŒããŸãã
\[
7995 - 5670 = 2325
\]
ãããã£ãŠããã§ã³ãããã¯ãããŒã¯2325æäœãããŸããã
åç㯠#### 2325 ã§ãã
| 2,325 |
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ãŸããã°ã©ã³ãã¹å士ãæç€ºããã¢ã€ãã ã®æ°ãæŽçããŸãããïŒ
- 詊éšç®¡: 16æ¬
- ããŒã«ãŒ: 7å
- ãããªç¿: 14å
ã€ãŽãŒã«ãéããã¢ã€ãã ã®æ°ã¯ä»¥äžã®éãã§ãïŒ
1. 詊éšç®¡: 16æ¬ã®åå â 8æ¬
2. ãããªç¿: 14å + 2å â 16å
3. ããŒã«ãŒ: æ£ãã7å
ããããã€ãŽãŒã«ã¯å®éšå°ã«åããéäžã§ããã€ãã®ããŒã«ãŒã倱ãããæçµçã«ã¢ã€ãã ã®ç·æ°ã29åã«ãªããŸããããããæ°åŒã§è¡šããšïŒ
\[ 8 + (7 - x) + 16 = 29 \]
ããã§ã\( x \) ã¯å€±ãããããŒã«ãŒã®æ°ã§ãã
åŒãç°¡ç¥åããŸãããïŒ
\[ 8 + 7 - x + 16 = 29 \]
\[ 31 - x = 29 \]
䞡蟺ãã31ãåŒããŸãïŒ
\[ -x = 29 - 31 \]
\[ -x = -2 \]
ãããã£ãŠã
\[ x = 2 \]
ã€ãŽãŒã«ã¯2åã®ããŒã«ãŒã倱ãããŸããã
ãããã£ãŠãããŒã«ãŒã倱ãããæ°ã¯2åã§ããæåŸã«ãåçã瀺ããŸãã
#### 2
| 2 |
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|
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èŠãšããããžã®ç·æ°ãèšç®ããŸãã
1ã€ã®ããŒãã«ã«ã¯4æ¬ã®èããããåèã«ã¯2æ¬ã®ããžãå¿
èŠã§ãã
ãããã£ãŠã1ã€ã®ããŒãã«ã«å¿
èŠãªããžã®æ¬æ°ã¯:
\[
4 \text{ (è)} \times 2 \text{ (ããž/è)} = 8 \text{ (ããž)}
\]
次ã«ã4ã€ã®ããŒãã«å
šäœã§å¿
èŠãªããžã®æ°ã¯:
\[
8 \text{ (ããž/ããŒãã«)} \times 4 \text{ (ããŒãã«)} = 32 \text{ (ããž)}
\]
圌ã¯40æ¬ã®ããžãæã£ãŠããã®ã§ãäœãããžã®æ¬æ°ã¯æ¬¡ã®ããã«èšç®ããŸãã
\[
40 \text{ (ããž)} - 32 \text{ (ããž)} = 8 \text{ (äœãããž)}
\]
ã€ãŸãããžã§ãŒã ãºã¯8æ¬ã®ããžãäœãããããšã«ãªããŸãã
åç: ####8
| 8 |
1ã€ç®ã®ããã«ã¯10åã®åµãå
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|
1ã€ç®ã®ããã«ã¯10åã®åµããããŸãã
2ã€ç®ã®ããã«ã¯ãã®2åã®åµãããã®ã§ã2ã€ç®ã®ããã«ã¯10 à 2 = 20åã®åµããããŸãã
äž¡æ¹ã®ããã«å
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10 + 20 = 30åã«ãªããŸãã
ãããã£ãŠãäž¡æ¹ã®ããã«å
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åçã¯30ãªã®ã§ã####30
| 30 |
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|
ãŸããã¢ãŒãã³ã®éãã \(v_a\) ãã€ã«/åããŽã¡ãããµã®éãã \(v_v\) ãã€ã«/åãšããŸããå顿ãã以äžã®æ
å ±ãåŸãããŸãïŒ
1. ã¢ãŒãã³ã¯ãŽã¡ãããµã®2åã®éãã§èµ°ãïŒ
\[
v_a = 2v_v
\]
2. ãŽã¡ãããµã¯ã¢ãŒãã³ã®2åã®è·é¢ãèµ°ãïŒ
ãŽã¡ãããµãèµ°ãè·é¢ã¯4ãã€ã«ã§ãããã¢ãŒãã³ã¯èªåã®éšåãã€ãŸã2ãã€ã«ãèµ°ããŸãã
ã¢ãŒãã³ã2ãã€ã«ãèµ°ãã®ã«16åããã£ãã®ã§ãã¢ãŒãã³ã®éããæ±ããããŸãïŒ
\[
v_a = \frac{2 \text{ãã€ã«}}{16 \text{å}} = \frac{1}{8} \text{ãã€ã«/å}
\]
ãããå
ã«ç€ºããéãã®é¢ä¿åŒã«ä»£å
¥ããŸãïŒ
\[
\frac{1}{8} = 2v_v
\]
ãããã£ãŠããŽã¡ãããµã®éãã¯ïŒ
\[
v_v = \frac{1}{16} \text{ãã€ã«/å}
\]
ã®éãã§ãããšããããŸããã
ãŽã¡ãããµã4ãã€ã«ãèµ°ãã®ã«ãããæéãèšç®ããŸãïŒ
\[
\text{æé} = \frac{\text{è·é¢}}{\text{éã}} = \frac{4 \text{ãã€ã«}}{\frac{1}{16} \text{ãã€ã«/å}} = 4 \times 16 = 64 \text{å}
\]
ãããã£ãŠããŽã¡ãããµãèªåã®éšåãå®äºããã®ã«ããã£ãæéã¯64åã§ããæçµçãªåçã¯ä»¥äžã®éãã§ãã
#### 64
| 64 |
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200ãã£ãŒã à 3ãã£ãŒã/ãã£ãŒã = 600ãã£ãŒã
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®ããŸãã
賌å
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600ãã£ãŒã - 6ãã£ãŒã = 594ãã£ãŒã
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æçµçãªåçã¯ã####594ã§ãã
| 594 |
ãã ã®ã¬ã¹ãã©ã³ã¯å€ã«6ä»¶ã®äºçŽãåããŸããéåžžããããã5ãã«ã®é£äºã2ã€ãšã5ãã«ã®ããã«ã¯ã€ã³ã泚æããŸããé±ã«2æ¥éåºããŠããå Žåã1é±éã§ã©ããããã®åå
¥ããããŸããïŒ
|
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é£äºä»£: 5ãã« Ã 2 = 10ãã«
ãŸããåäºçŽã§ã¯5ãã«ã®ããã«ã¯ã€ã³ã泚æãããŸãããããã£ãŠã1ä»¶ã®äºçŽã®åèšéé¡ã¯æ¬¡ã®ããã«ãªããŸãã
åèš: 10ãã«ïŒé£äºä»£ïŒ + 5ãã«ïŒã¯ã€ã³ä»£ïŒ = 15ãã«
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1æ©ã®åå
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¥: 90ãã« Ã 2æ¥ = 180ãã«
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#### 180
| 180 |
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賌å
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= 80ãã« / 50å
= 1.6ãã«
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å©ç = 賌å
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= 1.6ãã« Ã 0.25
= 0.4ãã«
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è²©å£²äŸ¡æ Œ = 賌å
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= 1.6ãã« + 0.4ãã«
= 2.0ãã«
ãããã£ãŠãäžã€ãããã®ã¹ã€ã«ã¯2.0ãã«ã§å£²ãããŸããã
åçã¯ã####2.0ãã§ãã
| 2 |
ãžã§ã³ã¯19æ³ã®æã«æ¯åã®ãžã§ãŒã ãºãããããŸããããžã§ãŒã ãºã¯ä»ã効ã®ãã©ã®2åã®å¹Žéœ¢ã§ãããã©ã¯3幎åŸã«12æ³ã«ãªããŸãããžã§ã³ã32æ³ã®æã«çãŸãããžã§ã³ã®äžçªäžã®æ¯åã¯3幎åŸã«äœæ³ã«ãªããŸããïŒ
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ãã©ã¯3幎åŸã«12æ³ã«ãªãã®ã§ãä»ã®å¹Žéœ¢ã¯:
12æ³ - 3幎 = 9æ³
次ã«ããžã§ãŒã ãºã®å¹Žéœ¢ãæ±ããŸãããžã§ãŒã ãºã¯ä»ããã©ã®2åã®å¹Žéœ¢ã§ããã:
ãžã§ãŒã ãºã®å¹Žéœ¢ = 2 à ãã©ã®å¹Žéœ¢ = 2 à 9æ³ = 18æ³
ãžã§ã³ã19æ³ã®æã«ãžã§ãŒã ãºãçãŸããããããžã§ã³ã®çŸåšã®å¹Žéœ¢ã¯:
ãžã§ã³ã®å¹Žéœ¢ = 19æ³ + 18æ³ = 37æ³
次ã«ããžã§ã³ã32æ³ã®æã«çãŸãããäžçªäžã®æ¯åãã®å¹Žéœ¢ãæ±ããŸãããžã§ã³ã32æ³ã®æããçŸåšã®37æ³ãŸã§ã®å¹Žæ°ã¯:
37æ³ - 32æ³ = 5幎
ãããã£ãŠããäžçªäžã®æ¯åãã¯çŸåš5æ³ã§ãã
3幎åŸã«ã¯ã圌ã¯:
5æ³ + 3æ³ = 8æ³ã«ãªããŸãã
ãããã£ãŠããžã§ã³ã®äžçªäžã®æ¯åã3幎åŸã«äœæ³ã«ãªããã¯ã8æ³ãšãªããŸãã
åŸã£ãŠãåçã¯ã#### 8ãã§ãã
| 8 |
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ã¢ããããããªã¬ã³ãžã®æ°ïŒ
60å ÷ 3å/å = 20å
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ãžã§ãŒã³ãããããªã¬ã³ãžã®æ°ïŒ
60å ÷ 4å/å = 15å
ã¢ããããããªã¬ã³ãžã®æ°ã20åããžã§ãŒã³ãããããªã¬ã³ãžã®æ°ã15åãªã®ã§ãã¢ãããžã§ãŒã³ããããããªã¬ã³ãžã®æ°ã¯æ¬¡ã®ããã«ãªããŸãã
ã¢ãããžã§ãŒã³ããå€ããããæ°ïŒ
20å - 15å = 5å
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çãã¯ã####5ãã§ãã
| 5 |
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å²åŒé¡ = 400ãã« Ã 0.80 = 320ãã«
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ã¡ã«ããã¯ã®è²»çš = 50ãã« Ã 3æé = 150ãã«
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åèšéé¡ = ã©ãžãšãŒã¿ãŒã®è²»çš + ã¡ã«ããã¯ã®è²»çš = 80ãã« + 150ãã« = 230ãã«
ãããã£ãŠã圌ã¯åèšã§230ãã«æ¯æããŸããã
åç: ####230
| 230 |
ãã©ãŠã³èŸ²å Žã«ã¯ãé¶ãšçãåãããŠ20å¹ã®åç©ãããŸãããããã®åç©ã®è¶³ã¯åèšã§70æ¬ãããŸããé¶ã¯äœå¹ããŸããïŒ
|
é¶ã \( x \) å¹ãçã \( y \) å¹ãšããŸããããå顿ããæ¬¡ã®2ã€ã®æ¹çšåŒãåŸãããŸãã
1. åç©ã®ç·æ°ã®æ¹çšåŒïŒ
\[
x + y = 20
\]
2. è¶³ã®ç·æ°ã®æ¹çšåŒïŒ
\[
2x + 4y = 70
\]
æåã®æ¹çšåŒããã\( y \) ã \( 20 - x \) ã«çœ®ãæããŸãã
次ã«ãããã2ã€ç®ã®æ¹çšåŒã«ä»£å
¥ããŸãïŒ
\[
2x + 4(20 - x) = 70
\]
å±éãããšïŒ
\[
2x + 80 - 4x = 70
\]
æŽçããŠïŒ
\[
-2x + 80 = 70
\]
䞡蟺ãã80ãåŒããŸãïŒ
\[
-2x = -10
\]
䞡蟺ã-2ã§å²ããŸãïŒ
\[
x = 5
\]
ãããã£ãŠãé¶ã®æ°ã¯5å¹ã§ãããŸãã\( y \) ãæ±ãããšïŒ
\[
y = 20 - x = 20 - 5 = 15
\]
ããªãã¡ãé¶ã¯5å¹ã§ããçãã¯æ¬¡ã®éãã§ãã
#### 5
| 5 |
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7æ Ã 8åã/æ = 56åã
次ã«ããã³ãªãŒãšåœŒã®å人3人ã®åèšäººæ°ãèããŸãã
ãã³ãªãŒ1人 + å人3人 = 4人
ãã®56åãã4人ã§åçã«åãããšã1人ãããäœåãã«ãªããèšç®ããŸãã
56åã ÷ 4人 = 14åã
ãããã£ãŠãåèªãé£ã¹ãããšãã§ããåãæ°ã¯14åãã§ãã
åçã¯ã####14ãã§ãã
| 14 |
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