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I have $175 in my wallet, consisting of $10 and $5 notes. the $10 notes are twice as much as $5 notes. Find the number of $5 notes.​

Respuesta :

epicyolo64

Answer:

7 $5 Notes

Step-by-step explanation:

Let x represent the number of $10 notes

Let y represent the number of $5 notes

We can use systems of equations to find the solution

[tex]10x+5y=175\\x=2y[/tex]

We can solve by substitution

[tex]10(2y)+5y=175[/tex]

[tex]20y+5y=175[/tex]

[tex]25y=175[/tex]

[tex]y=7[/tex]

Plug back into original equation

[tex]x=2(7)\\x=14[/tex]

Therefore, there are 14 $10 notes, and there are 7 $5 notes.

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