Can someone help me find the value of x for the figures given ? Thanks!
1 answer:
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Answer:
unit rate is 6.66 miles per hour .
Step-by-step explanation:
here's the solution :-
distance covered by mya = 10 miles
time taken = 1.5 hours
=》
=》
=》
hence, unit rate = 6.66 miles per hour.
<h3>Answer:</h3>
You can try the choices to see which one works. The differences between an values double each time. They have the sequence 1, 2, 4, 8. So, you know that choices A) and D) do not work. They show the difference to be constant at 1 or 8. Since the differences are multiplied by 2, C) is a reasonable choice. Trying that, we find it describes the sequence perfectly:
a2 = 2·2 -1 = 3
a3 = 2·3 -1 = 5
a4 = 2·5 -1 = 9
a5 = 2·9 -1 = 17
___
Trying choice B on the last term, we have
... a5 = 3·a4 -3 = 3·9 -3 = <em>24 ≠ 17</em>