Answer:
90 mph
Step-by-step explanation:
-Let the distance of my friend be X.
-Given that I run a mile in 1 minute, my speed is calculated as:
[tex]Speed=\frac{Distance}{Time}\\\\=\frac{1\ mile}{1\ minute}\\\\=1 \m/m=60\ mph[/tex]
-Since my friend run's 50% faster, his/her speed would be:
[tex]X=60\times 150\%\\\\X=1.5\times 60\\\\=90\ mph[/tex]
Hence, my friend's speed is 90 mph
