X/5 + 23 = 12
1 answer:
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Answer:
In traffic, she drove for 3 hours
and After the traffic cleared she drove for 2 hours.
Explanation:
Given that the road trip was 136 miles;
The first part of the trip there was lots of traffic, she only averaged 16 mph;
The second part of the trip there was no traffic so she could drive 44 mph;
She traveled for a total of 5 hours;
let x represent the time in traffic when she traveled at 16 mph
the time the traffic is clear would be;
Recall that distance equals speed multiply by time;
substituting the values;
solving for x;
So;
Therefore, In traffic, she drove for 3 hours
and After the traffic cleared she drove for 2 hours.
Answer:
a = 64
Step-by-step explanation:
The geometric mean of 2 numbers a and b is , then
= 16
( square both sides )
28a = (16 )² = 1792 ( divide both sides by 28 )
a = 64