Their distance differs by 15 miles for each hour of travel time. Thus, the travel time of interest is
.. (180 -144) miles/(15 miles/hour) = 2.4 hour
The red car's speed is 180 mi/(2.4 h) = 75 mi/h.
The blue car's speed is 144 mi/(2.4 h) = 60 mi/h.
A^2 + b^2 = c^2 in right triangles.
4^2 + b^2 = 8.5^2
16 + b^2 = 72.25
b^2 = 56.25
b = 7.5
The answer would be 16 if you substitute -3 for X and solve
We can change up the expression to find e.
45.58 - 19.95 = e.
25.63 is the result of this, so we can check:
45.58 - 25.63 = 19.95.
e = 25.63
1/2*2a= 1a
-6b*1/2=-3b
8* 1/2= 4
so 1a-3b+8
