Diagonal of a square is √2a
so,
√2 a = 12
a= 12/√2
and.. perimeter of a square is 4a
so,
peri = 4*12/√2
= 48/√2
=33.94cm
144 - 56 = 88
88/144 simplified to -----> 11/18
Answer:
r = 6 mph and f = 11 mph
Step-by-step explanation:
Representations:
1) speed of faster cyclist: f = r + 5
2) speed of slower cyclist: r
Distances covered:
(r + 5)(5 hr) + r(5) = 55 mi (total distance covered)
Then 5r + 25 + 5r = 55, or, after reducing this equation:
r + 5 + r = 11, or
2r = 6
Then r = 6 mph and f = 11 mph
Answer:
14.8 miles
Step-by-step explanation:
Ok, so we know from the question that she already lives at least 14 miles away because the bus ride is 14 miles long. So, if she has to walk an extra 0.8 miles, you add them together to get 14.8 :)
