Answer:
6.25%
Step-by-step explanation:
Each time you flip a coin, there is a 50% probability of it landing on tails. Each time you flip the coin, the 50% gets multiplied by .
to the power of <em>4 </em>is 0.0625. 0.0625 in percentage form is of course 6.25%
Answer:
2/91.
Step-by-step explanation:
There are 15 marbles in the bag.
Prob(First draw is red) = 5/15 = 1/3.
Prob(Second draw is red) = 4/14 = 2/7.
Prob(Third draw is red) = 3/13.
So probability that all 3 are red = .1/3 * 2/7 * 3/13
= 6/273
= 2/91.
Answer:
ask some one
Step-by-step explanation:
Answer:
x = 158
Step-by-step explanation:
Given
885 = 5(x + 19) ← divide both sides by 5
177 = x + 19 ( subtract 19 from both sides )
158 = x
Answer:
$66
Step-by-step explanation:
from the question,
let cost for one purse = X
let cost for one necklace = Y
from the question,
2Y+ 3X= 208.50-------(1)
Y + X = 91.50----------(2)×3
3Y + 3X =274.5--------(3)
subtract equation equation 2 from 3
3Y + 3X = 274.50
2Y + 3X =208.50
Y = 66
cost of one necklace= $66