30-20=x 30 for the height of panther and 20in taller so u subtract 20 from 30
Answer:
The speed of the current is 2 miles per hours
Step-by-step explanation:
Given as :
The speed of motorboat = x = 15 miles per hour
The time taken by motorboat trip upstream = 51 minutes
The time taken by motorboat trip downstream = 39 minutes
Let The speed of the current = y miles per hour
Let The total distance cover = A miles
So ,
Speed = 
So, x - y =
I.e 15 - y =
And x + y =
I.e 15 + y =
=
I.e
=
Or, 17 × (x - y) = 13 × (x + y)
Or, 17 x - 17 y = 13 x + 13 y
Or, 17 x - 13 x = 13 y + 17 y
Or, 4 x = 30 y
Now, ∵ x = 15 miles per hour
So, 4 × 15 = 30 y
Or, y =
∴ y = 2 miles per hour
Hence The speed of the current is 2 miles per hours Answer
We wish to know how much faster Grant rows than Arianna.
d=G-A and we want our answer is miles/hour so
d=(6mi/36min)(60min/hr)-(3520yd/20min)(mi/1760yd)(60min/hr)
d=10mph-6mph
d=4mph
So Grant rows 4 miles per hour faster than Arianna.
can someone please help him or her please please