I am pretty sure this is how you do it! Hope this helps!
here is a 1/2 probability for getting heads
so 1/2 x 1/2 x 1/2 x 1/2 = 1/16 probability of 4 in a row
<span>1.333333333333333.... = 4/3.
To find this:
x = 1.3333333333333...
Multiply by 10:
10x = 13.3333333333...
Subtract x = 1.3333333333333333....:
9x = 12.
Divide by 9:
x = 12/9 = 4/3.</span>
Answer:
3
Step-by-step explanation:
Using the work rate formula (1/Holly's time) + (1/Jasper's time which is twice of Holly's time) = 1/ Total time taken by both