Answer:
0.2x² - 0.2x - 42 = 0
Step-by-step explanation:
Number of counters = x
Number of blue counters =7
Probability, p = required outcome / Total possible outcomes
P(Sam picks blue ) : = 7/x
P(jill picks blue) = 6/(x - 1)
P(Sam picks blue) * P(Jill picks blue) = 0.2
7/x * 6/(x-1) = 0.2
42/x(x - 1) = 0.2
42 / x² - x= 0.2
42 = 0.2(x² - x)
42 = 0.2x² - 0.2x
0.2x² - 0.2x - 42
If its to number 9, it's ∈35.48
Answer:
5/25 and 5 to 25
Step-by-step explanation:
jssjskkdkddk
Answer:
no
Step-by-step explanation:
because if you multiply 60 times 2 you dont get 2 so it is not proportional
