Answer:
56 minutes
Step-by-step explanation:
Answer:
>
Step-by-step explanation:
absolute value is just the number without the negative sign if there is one.
11.5>9.5 always.
Answer: it is 4
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
Determine the average speed
This is calculated as thus:

Convert time to hour:









We are given with two equations X + y = k and <span>x - y = k. to find the solution of the </span>system<span> of linear equations, we can use elimination by adding the equations to eliminate y. hence the third equation is 2x= 2k ; x = k, hence y is equal to zero. Answer is C</span>