The answer is D $126,if three cost $54 that means one costs $18 and just multiply it with seven
<span>This is an arithmetic progression, i.e. 16,18,20,22,24,26,28.......... where 16 is the number of people seats in 1st row, 18 seats in second row, 20 seats in third row and so on. The Total number of seats in 20 rows = n/2{2a+(n-1)d}. Here, d = 2 , n =20, a = 16. Thus, Sum = 10 {32+ 19*2} = 10 {70} = 700 seats in total. </span>
The total space in the parking lot is 1600 cars
It is mentioned that parts of this parking is filled
Now we are required to find what is the three-fourths part of 1600
To find it we multiply times 1600
=
=
= 1200 cars
Hence 1200 cars fills the three-fourths of the car parking lot that has a capacity of 1600 cars
Answer:
30
Step-by-step explanation:
You can use the triangle area theorem-
15x4(/2)=30
13.5/3 = 4.5
He hiked for 4.5 hours.