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©‫שמורות‬ ‫הזכויות‬ ‫כל‬–‫בגרות‬‫ליין‬ ‫און‬
‫השלום‬ ‫דרך‬7,‫אביב‬ ‫תל‬|‫טלפון‬:1-700-700-893|‫פקס‬:077-4702657
office@bagrutonline.co.il :‫דוא"ל‬ | www.bagrutonline.co.il :‫אתר‬
‫מילוליות‬ ‫בעיות‬
(801 ‫שאלון‬ ‫־‬ ‫תשע"ג‬ ‫חורף‬ ‫מבגרות‬ ‫)שאלה‬
‫הוא‬ ‫כיסאות‬ 6 ‫ו־‬ ‫שולחנות‬ 2 ‫של‬ ‫המחיר‬ ,‫שקלים‬ 1500 ‫הוא‬ ‫כיסאות‬ 4 ‫ו־‬ ‫שולחן‬ 1 ‫של‬ ‫המחיר‬
.‫שקלים‬ 2500
.‫הכיסא‬ ‫מחיר‬ ‫ואת‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫מצא‬ .‫א‬
‫בעבור‬ ‫קונה‬ ‫ישלם‬ ‫כמה‬ .20% ‫ב־‬ ‫כן‬ ‫גם‬ ‫עלה‬ ‫השולחן‬ ‫ומחיר‬ ,20% ‫ב־‬ ‫עלה‬ ‫הכיסא‬ ‫מחיר‬ .‫ב‬
?‫ההתייקרות‬ ‫לאחר‬ ‫כיסאות‬ 4 ‫ו־‬ ‫שולחן‬ 1
1
©‫שמורות‬ ‫הזכויות‬ ‫כל‬–‫בגרות‬‫ליין‬ ‫און‬
‫השלום‬ ‫דרך‬7,‫אביב‬ ‫תל‬|‫טלפון‬:1-700-700-893|‫פקס‬:077-4702657
office@bagrutonline.co.il :‫דוא"ל‬ | www.bagrutonline.co.il :‫אתר‬
‫מילוליות‬ ‫בעיות‬
‫שני‬ ‫עם‬ ‫משוואות‬ ‫מערכת‬ ‫נפתור‬ .y ‫ב־‬ ‫הכיסא‬ ‫מחיר‬ ‫ואת‬ x ‫ב־‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫נסמן‬ .‫א‬
:‫נעלמים‬
x + 4y = 1500
2x + 6y = 2500
:‫החדשה‬ ‫המערכת‬ ‫את‬ ‫ונקבל‬ 2 ‫פי‬ ‫הראשונה‬ ‫המשוואה‬ ‫את‬ ‫נכפיל‬
2x + 8y = 3000
2x + 6y = 2500
:‫אחד‬ ‫נעלם‬ ‫עם‬ ‫אחת‬ ‫משוואה‬ ‫ונקבל‬ ‫המשוואות‬ ‫את‬ ‫נחסיר‬
2y = 500
:‫נקבל‬ 1
2 ‫פי‬ ‫כפל‬ ‫לאחר‬
y = 250
:‫המקורית‬ ‫במערכת‬ ‫הראשונה‬ ‫המשוואה‬ ‫לפי‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫נחשב‬
x + 4 · 250 = 1500
.250 ‫הוא‬ ‫הכיסא‬ ‫ומחיר‬ ‫שקלים‬ 500 ‫הוא‬ ‫השולחן‬ ‫מחיר‬ .x = 500 ‫ולכן‬
:‫הם‬ ‫החדשים‬ ‫המחירים‬ ‫ולכן‬ 20%‫ב־‬ ‫עלו‬ ‫והשולחן‬ ‫הכיסא‬ ‫מחיר‬ .‫ב‬
xnew = 1.2 · 500 = 600
ynew = 1.2 · 250 = 300
:‫אחד‬ ‫ושולחן‬ ‫כיסאות‬ ‫לארבעה‬ ‫העלות‬ ‫את‬ ‫המתארת‬ ‫משוואה‬ ‫נבנה‬
4 · 300 + 1 · 600 = 1800
.‫שקלים‬ 1800 ‫ישלם‬ ‫קונה‬
2

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801 - בעיות מילוליות לדוגמה

  • 1. ©‫שמורות‬ ‫הזכויות‬ ‫כל‬–‫בגרות‬‫ליין‬ ‫און‬ ‫השלום‬ ‫דרך‬7,‫אביב‬ ‫תל‬|‫טלפון‬:1-700-700-893|‫פקס‬:077-4702657 office@bagrutonline.co.il :‫דוא"ל‬ | www.bagrutonline.co.il :‫אתר‬ ‫מילוליות‬ ‫בעיות‬ (801 ‫שאלון‬ ‫־‬ ‫תשע"ג‬ ‫חורף‬ ‫מבגרות‬ ‫)שאלה‬ ‫הוא‬ ‫כיסאות‬ 6 ‫ו־‬ ‫שולחנות‬ 2 ‫של‬ ‫המחיר‬ ,‫שקלים‬ 1500 ‫הוא‬ ‫כיסאות‬ 4 ‫ו־‬ ‫שולחן‬ 1 ‫של‬ ‫המחיר‬ .‫שקלים‬ 2500 .‫הכיסא‬ ‫מחיר‬ ‫ואת‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫מצא‬ .‫א‬ ‫בעבור‬ ‫קונה‬ ‫ישלם‬ ‫כמה‬ .20% ‫ב־‬ ‫כן‬ ‫גם‬ ‫עלה‬ ‫השולחן‬ ‫ומחיר‬ ,20% ‫ב־‬ ‫עלה‬ ‫הכיסא‬ ‫מחיר‬ .‫ב‬ ?‫ההתייקרות‬ ‫לאחר‬ ‫כיסאות‬ 4 ‫ו־‬ ‫שולחן‬ 1 1
  • 2. ©‫שמורות‬ ‫הזכויות‬ ‫כל‬–‫בגרות‬‫ליין‬ ‫און‬ ‫השלום‬ ‫דרך‬7,‫אביב‬ ‫תל‬|‫טלפון‬:1-700-700-893|‫פקס‬:077-4702657 office@bagrutonline.co.il :‫דוא"ל‬ | www.bagrutonline.co.il :‫אתר‬ ‫מילוליות‬ ‫בעיות‬ ‫שני‬ ‫עם‬ ‫משוואות‬ ‫מערכת‬ ‫נפתור‬ .y ‫ב־‬ ‫הכיסא‬ ‫מחיר‬ ‫ואת‬ x ‫ב־‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫נסמן‬ .‫א‬ :‫נעלמים‬ x + 4y = 1500 2x + 6y = 2500 :‫החדשה‬ ‫המערכת‬ ‫את‬ ‫ונקבל‬ 2 ‫פי‬ ‫הראשונה‬ ‫המשוואה‬ ‫את‬ ‫נכפיל‬ 2x + 8y = 3000 2x + 6y = 2500 :‫אחד‬ ‫נעלם‬ ‫עם‬ ‫אחת‬ ‫משוואה‬ ‫ונקבל‬ ‫המשוואות‬ ‫את‬ ‫נחסיר‬ 2y = 500 :‫נקבל‬ 1 2 ‫פי‬ ‫כפל‬ ‫לאחר‬ y = 250 :‫המקורית‬ ‫במערכת‬ ‫הראשונה‬ ‫המשוואה‬ ‫לפי‬ ‫השולחן‬ ‫מחיר‬ ‫את‬ ‫נחשב‬ x + 4 · 250 = 1500 .250 ‫הוא‬ ‫הכיסא‬ ‫ומחיר‬ ‫שקלים‬ 500 ‫הוא‬ ‫השולחן‬ ‫מחיר‬ .x = 500 ‫ולכן‬ :‫הם‬ ‫החדשים‬ ‫המחירים‬ ‫ולכן‬ 20%‫ב־‬ ‫עלו‬ ‫והשולחן‬ ‫הכיסא‬ ‫מחיר‬ .‫ב‬ xnew = 1.2 · 500 = 600 ynew = 1.2 · 250 = 300 :‫אחד‬ ‫ושולחן‬ ‫כיסאות‬ ‫לארבעה‬ ‫העלות‬ ‫את‬ ‫המתארת‬ ‫משוואה‬ ‫נבנה‬ 4 · 300 + 1 · 600 = 1800 .‫שקלים‬ 1800 ‫ישלם‬ ‫קונה‬ 2