2 years ago

Please Help Me I'm So Lost

Mathematics

1 answer:

Zolol [24]2 years ago

3 0

Answer:

im lost 2

Step-by-step explanation:im sorry T-T

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Answer: Maria has 10 bills of 5€ and 10 bills of 10€.

She has a total of 150€.

Step-by-step explanation:

Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.

Set up a system of equations:

$\left \{ {{f+t=20} \atop {5f+10t=10f+5t}} \right.$

Use the Substitution method to solve the system of equations:

1. Solve for "f" from the first equation:

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2. Substitute the equation obtained into the second equation and solve for "t".

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3. Substitute the value of "t" into the equation $f=20-t$ and evaluate:

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Therefore, Maria has 10 bills of 5€ and 10 bills of 10 €.

So the total amount of money she has, is:

$Total=10(5)+10(10)=150$

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