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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
‫ודעיכה‬ ‫גידול‬ ‫בעיות‬
.2.5% ‫של‬ ‫שנתית‬ ‫ריבית‬ ‫הנושאת‬ ‫חיסכון‬ ‫בתוכנית‬ ‫שקלים‬ 40, 000 ‫הפקיד‬ ‫דני‬
.‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫בתוכנית‬ ‫שיש‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫א‬
?‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫לתוכנית‬ ‫הכניס‬ ‫שדני‬ ‫הסכום‬ ‫גדל‬ ‫אחוזים‬ ‫בכמה‬ .‫ב‬
.‫שנים‬ 3.5 ‫כעבור‬ ‫החיסכון‬ ‫בתוכנית‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫ג‬
.‫חודשים‬ ‫וחמישה‬ ‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫שבתוכנית‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫ד‬
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
‫ודעיכה‬ ‫גידול‬ ‫בעיות‬
:‫ולכן‬ q = 1.00 + 2.5
100 = 1.025 ‫ולכן‬ 2.5% ‫היא‬ ‫השנתית‬ ‫הריבית‬ .‫א‬
M(t = 3) = 40, 000 · 1.0253
= 43, 075.62
.‫שקלים‬ 43, 075.62 ‫החיסכון‬ ‫בתוכנית‬ ‫שנים‬ 3 ‫לאחר‬
:‫החיסכון‬ ‫בתוכנית‬ ‫הסכום‬ ‫גדל‬ ‫אחוזים‬ ‫בכמה‬ ‫נחשב‬ .‫ב‬
40, 000 · x% = 43, 075.62
x% = 43,075.62
40,000 = 1.0768
.‫זו‬ ‫תקופה‬ ‫בתום‬ 7.68% ‫ב־‬ ‫גדל‬ ‫הסכום‬ ‫ולכן‬
:‫זה‬ ‫ערך‬ ‫נציב‬ ,t = 3.5 ‫ולכן‬ ,‫שנים‬ ‫של‬ ‫ביחידות‬ ‫נמדד‬ t .‫ג‬
M(t = 3.5) = 40, 000 · 1.0253.5
= 43, 610.74
.‫שקלים‬ 43, 610.74 ‫החיסכון‬ ‫בתוכנית‬ ‫שנים‬ 3.5 ‫לאחר‬
‫ערך‬ ‫נציב‬ ,t = 3 + 5
12 ‫ולכן‬ (‫חודשים‬ 12 ‫)בשנה‬ ‫מהשנה‬ ‫חלקים‬ 5
12 ‫הם‬ ‫חודשים‬ ‫חמישה‬ .‫ד‬
:‫זה‬
M(t = 3 + 5
12 ) = 40, 000 · 1.0253+ 5
12 = 43, 521.10
.‫החיסכון‬ ‫בתוכנית‬ ‫שקלים‬ 43, 521.10 ‫לדני‬ ‫זו‬ ‫תקופה‬ ‫בתום‬
2

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805 - בעיות גידול ודעיכה 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 ‫ודעיכה‬ ‫גידול‬ ‫בעיות‬ .2.5% ‫של‬ ‫שנתית‬ ‫ריבית‬ ‫הנושאת‬ ‫חיסכון‬ ‫בתוכנית‬ ‫שקלים‬ 40, 000 ‫הפקיד‬ ‫דני‬ .‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫בתוכנית‬ ‫שיש‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫א‬ ?‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫לתוכנית‬ ‫הכניס‬ ‫שדני‬ ‫הסכום‬ ‫גדל‬ ‫אחוזים‬ ‫בכמה‬ .‫ב‬ .‫שנים‬ 3.5 ‫כעבור‬ ‫החיסכון‬ ‫בתוכנית‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫ג‬ .‫חודשים‬ ‫וחמישה‬ ‫שנים‬ 3 ‫כעבור‬ ‫החיסכון‬ ‫שבתוכנית‬ ‫הסכום‬ ‫את‬ ‫חשב‬ .‫ד‬ 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 ‫ודעיכה‬ ‫גידול‬ ‫בעיות‬ :‫ולכן‬ q = 1.00 + 2.5 100 = 1.025 ‫ולכן‬ 2.5% ‫היא‬ ‫השנתית‬ ‫הריבית‬ .‫א‬ M(t = 3) = 40, 000 · 1.0253 = 43, 075.62 .‫שקלים‬ 43, 075.62 ‫החיסכון‬ ‫בתוכנית‬ ‫שנים‬ 3 ‫לאחר‬ :‫החיסכון‬ ‫בתוכנית‬ ‫הסכום‬ ‫גדל‬ ‫אחוזים‬ ‫בכמה‬ ‫נחשב‬ .‫ב‬ 40, 000 · x% = 43, 075.62 x% = 43,075.62 40,000 = 1.0768 .‫זו‬ ‫תקופה‬ ‫בתום‬ 7.68% ‫ב־‬ ‫גדל‬ ‫הסכום‬ ‫ולכן‬ :‫זה‬ ‫ערך‬ ‫נציב‬ ,t = 3.5 ‫ולכן‬ ,‫שנים‬ ‫של‬ ‫ביחידות‬ ‫נמדד‬ t .‫ג‬ M(t = 3.5) = 40, 000 · 1.0253.5 = 43, 610.74 .‫שקלים‬ 43, 610.74 ‫החיסכון‬ ‫בתוכנית‬ ‫שנים‬ 3.5 ‫לאחר‬ ‫ערך‬ ‫נציב‬ ,t = 3 + 5 12 ‫ולכן‬ (‫חודשים‬ 12 ‫)בשנה‬ ‫מהשנה‬ ‫חלקים‬ 5 12 ‫הם‬ ‫חודשים‬ ‫חמישה‬ .‫ד‬ :‫זה‬ M(t = 3 + 5 12 ) = 40, 000 · 1.0253+ 5 12 = 43, 521.10 .‫החיסכון‬ ‫בתוכנית‬ ‫שקלים‬ 43, 521.10 ‫לדני‬ ‫זו‬ ‫תקופה‬ ‫בתום‬ 2