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, so that's what I'll show you here:
Finally, solve for x:
If you had 100 balloons, you will have
40 yellow balloons.
Hope this helps!!
Answer:
B.
Step-by-step explanation:
It is the only one that makes sense.
The gcf would be 12 because both 12 and 36 can be divided by 12 and it is the highest number
Solution:
<u>We know that:</u>
<u>Simplify the equation to find the percent off:</u>
This means that the <u>original price</u> has decreased about 16%.
45% of 450 is 202.50
$202.50 is the price of markup
$652.50 is the selling price