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!!
The answer is 160 because they are proportions if you multiply 9 by 20 it will give you 180 so if you multiply 8 by 20 it will give you 160.
A. Rolling a die, where odd numbers represent sugar cookies and even numbers represent chocolate chip cookies.
Subtract the expression on the right of the equal sign. Collect terms. (Write the exponent properly.)
.. x² -9x +20 = 0
All sisters are all 3 years apart r 6 years apart but its actually 3