Answer:
x=73
Step-by-step explanation:
8x -5+2 x
8x+2x-5 ( combine like terms)
answer:
10x-5 or -5+10x
Answer:
x=10
Step-by-step explanation:
these are similar triangles
8 12
------ = -----------
x+4 2x+1
using cross products
8* (2x+1) = 12(x+4)
distribute
16x + 8 = 12x+48
subtract 12x from each side
16x-12x +8 = 12x-12x+48
4x+8 = 48
subtract 8 from each side
4x+8-8 = 48-8
4x = 40
divide by 4
4x/4 = 40/x
x =10
It took her 4 hours.
Since she travels 50 miles in just one hour, in four hours she could drive 200 miles. :)
