The ratio of green beads to yellow beads in a bracelet is three to four. The total number of beads is 14. How many green beads are there ?

Answer :

Answer:

There are 6 green beads there.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of green beads

y is the number of yellow beads

The ratio of green beads to yellow beads in a bracelet is three to four.

This means that

[tex]\frac{x}{y} = \frac{3}{4}[/tex]

So

[tex]3y = 4x[/tex]

[tex]y = \frac{4x}{3}[/tex]

The total number of beads is 14.

This means that [tex]x + y = 14[/tex]

How many green beads are there ?

This is x.

[tex]x + y = 14[/tex]

However

[tex]y = \frac{4x}{3}[/tex]

So

[tex]x + \frac{4x}{3} = 14[/tex]

Using multiplying by the gcm(3)

[tex]3x + 4x = 42[/tex]

[tex]7x = 42[/tex]

[tex]x = 6[/tex]

There are 6 green beads there.

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