30/78 simplified is 15/39
Hello! I can help you with this! So there is a $95 guitar for 15% off. That means Ms. Shelton would still have to pay 85% of the $95. To find the new sale price of the guitar, let’s multiply. 95 * 0.85 is 80.75. $80.75 is the new sale price of the guitar. However, not let’s add the sales tax to find the total price of the guitar. Multiply by 1.065 or 106.5%, because hat would give you all of the total price. 80.75 * 1.065 is 85.998 and other numbers behind it or 86.00 when rounded to the nearest hundredth. The total price Ms. Shelton will pay for the guitar is $86.
When looking at probabilities, two ideas are always true.
1) Any probability is more than 0.
2) The sum of all the probabilites is 1.
Idea #2 works here. (For example, think of how a die has six things and the probability of each is 1/6. So 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 1.) Let G = the probability of grape, C = probability of cherry and O = the probability of orange. From Idea #2, G + C + O = 1. Since we know G and C, then
3/10 + 1/5 + O = 1.
3/10 + 2/10 + O = 1
5/10 + O = 1
O = 5/10
Thus, the probability of an orange jelly bean is 5/10 = 1/2.
