X=5/2
4x7.5=12x
30=12x
X=30/12
X=5/2
Answer:
479.33
Step-by-step explanation:
10/30 is the same as 1/3 or 33.34%.
Multiply the fraction to the original price then subtract.
719 * 1/3 = 239.67
719 - 239.67 = 479.33
Best of Luck!
Answer: -280000
Step-by-step explanation: Remove parentheses: (a)=a =12x10 4 - 4x10 5
12x10 4 = 120000
4x10 5=400000
=120000-400000
then subtract the numbers:120000-400000= -280000
Sum greater than 9 from the Sample Space are:
{(4,6),(5,5),(5,6),(6,4),(6,5),(6,6)}
so, in total 6 out of total 36 combinations have a sum greater than 9
So, 
Probability(sum>9)=0.167
