The problem statement gives you the relationship between their speeds, and it gives you information you can use to find their total speed. You solve this by finding the total speed, then the proportion of that belonging to Bill.
The total speed is (120 mi)/(3 h) = 40 mi/h.
The speed ratio is ...
... Bill : Joe = 3 : 1
so the speed ratio Bill : Total is ...
... 3 : (3+1) = 3:4.
Bill's speed is (3/4)×(40 mi/h) = 30 mi/h.
Answer:
x<12
Step-by-step explanation:
Answer:
The Point estimate of the Population proportion E = 0.039≅0.04
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the sample size 'n' = 992
and x = 570
The Population proportion

<u><em>Step(ii):-</em></u>
<u><em>The point estimate of the Population proportion is determined by</em></u>
<u><em></em></u>
<u><em></em></u>
E = 0.039≅0.04
<u><em>Final answer</em></u>:-
The point estimate of the Population proportion E = 0.039≅0.04
<u><em></em></u>
Im pretty sure your answer is gonna be A) 15.5 .