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Can someone PLEASE help me solve this ive been stuck on it for half an hour

Can someone PLEASE help me solve this ive been stuck on it for half an hour-example-1
User Binary Worrier
by
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1 Answer

25 votes
25 votes

Answer:

Each poodle requires 1 balloon(s) and each poodle requires 3 balloons.

Explanation:

The equations that should be formed are:

3x + 3y = 12

3x + 2y = 9

In this scenario, x is the number of balloons required for a poodle, and y is the number of balloons required for a giraffe.

The question says that it should be solved using elimination.

This means that we have to completely reduce a variable to find the answer of the other remaining value. Since in both equations the coefficient of x is 3, they can cancel out when we subtract one from the other:

3x + 3y = 12

- 3x + 2y = 9

-----------------------

y = 3

This means that the number of balloons required for a giraffe is 3.

We can then put in this value of y, 3, into the equation to solve for x.

3x + 3 (3) = 12

3x + 9 = 12

3x = 12 - 9

3x = 3

x = 1

This reduces into the number of balloons required for a poodle to be 1.

We can confirm by plugging it in into the other equation.

3x + 2 (3) = 9

3x + 6 = 9

3x = 9 - 6

3x = 3

x = 1

After confirming, this should be the answer.

Hopefully this helps!

User Gurgeh
by
2.9k points