Just do 4x5 then add the zeros
No of outcomes =16
favourable outcome=4
<span>probability of getting exactly 3 heads=0.25</span>
Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
A. likely
B. unlikely
C. There is a greater chance in picking to purple marbles because there are less of the white and more purple.
Hallie should spin the wheel because u have a greater chance of landing on a 5 then rolling two number cubes and hoping both number cubes come to equal 5.
Answer:
616/14=44 pages
Step-by-step explanation:
