Answer:
It must be a right triangle.
It also must be bigger than the original triangle since we are multiplying it by something greater than 1.
We do not know if it is an isosceles triangle because the info isn't given, so it can't be that option.
It is definitely not smaller than the original.
4 * 42 + 55 * x / ( 4 + x ) = 50.
The answer of x comes out to be 6.4. Which means that the truck will have to travel around 6.4 miles at an average speed of 55 miles to make it 50.
Well to understand how i constructed its equation is very simple. I equated the total average speeds answer to 50 and just calculated the average speeds with the help of algebra where x is the number of miles at 55 mph.
Answer:
will do it right away, guarantee done in 5-20 mins! :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
t/4+t/3=1
(3t+4t)/12=1
7t/12=1
7t=12
t=12/7
x=(12/7)hours