3 years ago

I'M MARKING BRAINLIEST

Mathematics

2 answers:

Kaylis [27]3 years ago

7 0

I would say 1/3 to the 3rd because when you are multiplying with exponents. You add them. 2+(-5)=3

marin [14]3 years ago

3 0

Answer:

1/3 to the -7th

Step-by-step explanation:

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Answer:

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Let be "x" the cost in dollars of a party hat and "y" the cost in dollars of a mask.

Set up a System of equations using the information given in the exercise:

$\left \{ {{3x+4y=27} \atop {3x+6y=33}} \right.$

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2. Then you must add the equations.

3. Solve for "y".

Then:

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4. Now you can substitute the value of "y" into any original equation.

5. Finally, solve for "x" in order to find its value.

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Answer:

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