Answer:
Sandy will finish the race first.
Step-by-step explanation:
Let D be the total one sided distance in miles, ( between X and Y ),
We know that,
Since, from point X to point Y and back, Jack averages 30 miles per hour to point Y and 10 miles per hour back to point X.
So, the total time taken by Jack = 
Also, Sandy averages 20 miles per hour in both directions,
So, the total time taken by Sandy = 
∵ 0.133D > 0.10D
Hence, Sandy will finish the race first.
Answer:
Step-by-step explanation:
1514.8 can i get brainlis if correct
Answer:
x = 48
Step-by-step explanation:
The angle alternate to 75° includes 33° and the vertex of the Δ
vertex = 75 - 33 = 42°
The sum of the 3 angles in the triangle = 180° thus
x = 180 - (90 + 42) = 180 - 132 = 48
Answer:
n = - 5
Step-by-step explanation:
Using the rules of exponents
× 
⇔ 
⇔ 
Consider the left side
= 
= 
= 
, then
= 
Since the bases on both sides are the same, equate the exponents
2 + n = - 3 ( subtract 2 from both sides )
n = - 5
2/6 x 4 = 8/24
5/8 x 3 = 15/24
8/24 < 15/24
Hope this helped
