Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.
Answer:
789
.5 is a 5 or larger so the 8 goes to a 9
Step-by-step explanation:
Notice the picture below
now, we know their perimeter are the same for both
thus 4(a+4) = 6a
solve for "a"
The answer to the proportion is t=52.5