3+1/x *x = 7/x*x
3x+1 = 7
3x+1-1=7-1
3x=6
3x/3 =6/3
x =2
P(bull's-eye) = 700/30000 x 100% = 2.33% ≈ 2%
option A is the correct answer.
In a standard set of cards, the probability of drawing a red card or a face card is 73%
<h3>What is the probability?</h3>
In a standard deck of cards, there are 26 red cards. In that same deck, there will be 12 face cards.
The probability of picking either one is:
= (Number of face cards + Number of red cards) / Number of total cards
Solving gives:
= (12 + 26) / 52
= 38 / 52
= 73%
Find out more on probability at brainly.com/question/15812320
#SPJ4
Answer:
angle BOD = angle AOC
( cuz they are vertical opposite angles )
so angle BOD = 65°
648-259= 389
There are 259 boys and 389 girls.
