262.5 should be the correct answer though. 105/30=3.5 so the plane is approximately traveling at 3.5 miles per minute. 3.5x60= 210 so at an hour it has traveled 210 miles. Then we must find .25 of an hour which is 15 minutes. 15x 3.5=52.5. Add both the hour value and the .25 of an hour value together and it is 262.5 miles.
Answer:

Step-by-step explanation:
Triangle DEF is similar to triangle HGF.
Therefore the corresponding sides are proportional.
We can write the following equations for the corresponding sides.
This implies that,

This gives us,

We cross multiply to get,

We divide through by 5 to get,

We multiply to get,

Grouping like terms gives,

We simplify to obtain,
The correct answer is C
Answer:

Step-by-step explanation:

Hello,
So 54 : 24 = 9 : 4
A) 27 : 12 = 9 : 4
B) 18 : 6 = 3
C) 8 : 3 = 8 : 3
D) 24 : 54 = 4 : 9
Do the answer is A.
Hope this helps :)