Answer:
Step-by-step explanation:
We khow that A is the sum of all odd numbers that are less than 100
So A= 1+3+5+...+99
We can calculate this sum without adding all this numbers one by one
A = the number of terms *( first term + last one ) over 2
To get the number of terms we substract the first term from the last term then we add one
We khow that odd numbers are wiritten this way : 2*n +1 where n is an integer
So 99= 2*49+1
1= 2*0+1
So the number of terms is : 49-0+1 =50
So A= 50*(1+99)/2 = 2500
Foloowing the same method we get :
B= (49-1+1)*(2+98)/2= 2450
A>B
Answer:
Floor ride up to = 13 floor
Step-by-step explanation:
Given:
Parking garage = 4 floors under ground
Elevator up-to = 17 floor
Find:
Floor ride up to
Computation:
Floor ride up to = Elevator up-to - Parking garage
Floor ride up to = 17 floor - 4 floor
Floor ride up to = 13 floor
Answer:
D)
Step-by-step explanation:
