kar621
Answered

Fred and ethyl had 132 flowers altogether at first. After Fred sold 1/4 of his flowers and Ethyl sold 48 of her flowers, they had the same number of flowers left. How many did they each have at first?

Answer :

F + E = 132
3/4 F = E - 48           ( after Fred sold 1/4 of his flowers there is 3/4 flowers left )
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E = 132 - F
3/4 F = 132 - F - 48
3/4 F + F = 84
7/4 F = 84
F = 84 : 7/4 = 84 * 4/7 = 48
E = 132 - 48 = 84
We can prove it: 3/4 * 48 = 84 - 48
36 = 36 ( correct )
Answer:
Fred had 48 flowers and Ethel 84 flowers.

johanrusli

Fred had 48 flowers.

Ethyl had 84 flowers.

Further explanation

Simultaneous Linear Equations could be solved by using several methods such as :

  • Elimination Method
  • Substitution Method
  • Graph Method

If we have two linear equations with 2 variables x and y , then we need to find the value of x and y that satisfying the two equations simultaneously.

Let us tackle the problem!

Let :

Number of Fred's Flowers = f

Number of Ethyl's Flowers = e

Fred and ethyl had 132 flowers altogether at first.

[tex]f + e = 132[/tex]

[tex]f = 132 - e[/tex] → Equation 1

After Fred sold 1/4 of his flowers and Ethyl sold 48 of her flowers, they had the same number of flowers left.

[tex]f - \frac{1}{4}f = e - 48[/tex]

[tex]\frac{3}{4}f = e - 48[/tex]

[tex]\frac{3}{4}(132 - e) = e - 48[/tex] ← Equation 1

[tex]\frac{3}{4}(132) - \frac{3}{4}e = e - 48[/tex]

[tex]99 + 48 = \frac{3}{4}e + e[/tex]

[tex]147 = \frac{7}{4}e[/tex]

[tex]e = 147 \div \frac{7}{4}[/tex]

[tex]e = \boxed{84}[/tex]

[tex]f = 132 - e[/tex]

[tex]f = 132 - 84[/tex]

[tex]f = \boxed {48}[/tex]

Learn more

  • Perimeter of Rectangle : https://brainly.com/question/12826246
  • Elimination Method : https://brainly.com/question/11233927
  • Sum of The Ages : https://brainly.com/question/11240586

Answer details

Grade: High School

Subject: Mathematics

Chapter: Simultaneous Linear Equations

Keywords: Simultaneous , Elimination , Substitution , Method , Linear , Equations

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