Step-by-step explanation:
v=s/t
0<t represents ie s
Answer:
a. 20% b. 35% c. 1.6875 d. 14.25
Answer:
x = 9
Step-by-step explanation:
set a proportion: 8/12 = 6/x => 8x = 72 => x = 9
Step-by-step explanation:

is a root of the quadratic

This quadratic isn't factorable so use the quadratic formula

The plus and minus sign after b means we going to have two roots.
The roots are

and

We subsitue those values for Beta.
27a.

27b.
25
Answer:
3 hours or 180 minutes
Step-by-step explanation:
This one should be an easy one
First, lets convert everything to units
35 + (1 hour and 10 minutes or 70 minutes) + (1 hour and 15 minutes or 75 minutes) = 35 + 70 + 75 = 180 minutes, or 3 hours.
Hope it helps :)