Answer :
Answer:
Each poodle requires 3 balloons and each giraffe requires 4 balloons.
Explanation:
Let's call x the number of balloons that each poodle requires and y the number of balloons that each giraffe requires.
If at Bridget's party, she used 22 balloons for 2 poodles and 4 giraffes, then we can write the following equation:
2x + 4y = 22
And if at Erik's party, she used 15 balloons for 1 poodle and 3 giraffes, we can write the second equation:
x + 3y = 15
Then, the system of equation is:
2x + 4y = 22
x + 3y = 15
Now, we can solve the second equation for x:
x + 3y = 15
x + 3y - 3y = 15 - 3y
x = 15 - 3y
Then, substitute x = 15 - 3y on the first equation and solve for y as:
2x + 4y = 22
2(15 - 3y) + 4y = 22
2(15) - 2(3y) + 4y = 22
30 - 6y + 4y = 22
30 - 2y = 22
30 - 2y - 30 = 22 - 30
-2y = -8
-2y/(-2) = -8/(-2)
y = 4
Finally, the value of x is equal to:
x = 15 - 3y
x = 15 - 3(4)
x = 15 - 12
x = 3
Therefore, each poodle requires 3 balloons and each giraffe requires 4 balloons.