Read the story Trisha always sleeps wearing fluffy socks. She owns 2 pairs of fluffy socks for every 5
pairs of regular socks.
Pick the diagram that models the ratio in the story.
fluffy
regular
fluffy
regular
If Trisha owns 12 more pairs of regular socks than fluffy socks, how many pairs of socks does
she own altogether?
pairs of socks

Respuesta :

Using proportions, it is found that Trisha owns 28 pairs of socks.

To solve this problem, we will use the proportion, them combine it with a system of equations.

System variables:

  • Variable x: Number of pairs of fluffy socks she owns.
  • Variable y: Number of pairs of regular socks she owns.

What is the proportion?

  • Trisha owns 2 pairs of fluffy socks for every 5  pairs of regular socks, hence, the proportion is:

[tex]\frac{x}{y} = \frac{2}{5}[/tex]

[tex]2y = 5x[/tex]

[tex]y = \frac{5x}{2}[/tex]

Trisha owns 12 more pairs of regular socks than fluffy socks, hence:

[tex]y = 12 + x[/tex]

[tex]\frac{5x}{2} = 12 + x[/tex]

[tex]5x = 24 + 2x[/tex]

[tex]3x = 24[/tex]

[tex]x = \frac{24}{3}[/tex]

[tex]x = 8[/tex]

Then:

[tex]y = \frac{5x}{2} = \frac{5(8)}{2} = 20[/tex]

The total amount is: 8 + 20 = 28.

Hence, Trisha owns 28 pairs of socks.

To learn more about proportions, you can take a look at https://brainly.com/question/24372153