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Zorluk: OrtaBasic Algebraic Expressions and One-Step Equations

A craft workshop instructor purchases a large spool of decorative ribbon of length LL meters. She cuts the entire spool into 1515 equal-length pieces to make banners for an art project. If each piece measures 2.42.4 meters, which of the following equations can be solved to find the total length LL, in meters, of the spool of ribbon?

  1. L15=2.4\frac{L}{15} = 2.4Cevap
  2. B
    15L=2.415L = 2.4
  3. C
    L15=2.4L - 15 = 2.4
  4. D
    15L=2.4\frac{15}{L} = 2.4
  5. E
    L+15=2.4L + 15 = 2.4

Cevap

The equation that can be solved to find the total length LL is L15=2.4\frac{L}{15} = 2.4.
When a total quantity LL is divided equally into 1515 pieces, the length of each individual piece is found by dividing LL by 1515. Setting this quotient equal to the given single piece length of 2.42.4 meters yields L15=2.4\frac{L}{15} = 2.4.

Adım Adım Çözüm

1
Identify the relationship between total length, number of pieces, and length per piece.
Total Length ÷\div Number of Pieces == Length per Piece
Dividing a total quantity into equal parts corresponds to mathematical division.
2
Substitute the given values and variables into the relationship.
L15=2.4\frac{L}{15} = 2.4
The total length is represented by LL, the number of pieces is 1515, and each piece is 2.42.4 meters long.

Anahtar Kavram

Translating equal sharing or division word problems into one-step linear equations
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