The answer is,
= 22.5 × 2
= 90 in. squared
If you have 8 yellow balloons for every 12 blue balloons, then if you have 20 balloons in total, 8 out of 20 of those balloons will be yellow. Then you can set up this ratio.
Then, you can use either cross multiplication or multiply the numerator and denominator by the same number to help solve for x. Personally, I prefer cross multiplication.
Finally, solve for x and if you had 100 balloons, you will have 40 yellow balloons.
The sale price of the jacket that Sierra wants to buy = $120
Actual price of the jacket that Sierra wants to buy = $150
Amount of sale given on the jacket that Sierra wants to buy = (150 - 120) dollars
= 30 dollars
Percentage change in the price of jacket = (30/150) * 100
= (1/5) * 100
= 20 percent
So the percentage change in the price of the jacket that Sierra wanted to buy was 20%. The correct option among all the options given in the question is option "C".I hope that the procedure is clear enough for you to understand.
