20 x 3.2 = 64.0
It is equal to 64 because of you do long multiplication, it is 32 x 20 then add back in the decimal point in between the 4 and 0 for the answer.
Let's V the speed of the girl in step
v the speed of the escalator in step
L the length between ground and floor.
V*60+v*60=L ==> V+v=L/60
V*90-v*90=L ==> V-v=L/90
2V=L(3+2)/180
==>V=5L/360
Time to climb (in step) with v=0 (escalator standing still)
V*t=L==> t=L/V=L/(L*5/360)=72
The girl will count 72 steps.
2 this is because it is up 2 and over 1 (rise over run) and therefore 2/1. 2/1 =2
hope i helped and you understand slope now:)
Answer:
Gold, Orange, White, Blue
Step-by-step explanation:
Answer:
8 months
Step-by-step explanation:
because it's right just trust me
