Answer:
20
Step-by-step explanation:
if you divide 50 from 2.5 you get 20
then take 20x2.5 and you get 50.
We let x be the length (in minutes) of a certain science class. 65% of this period is spent with the experiment which lasted for about 52 minutes. Mathematically, this can be expressed as,
52 = (0.65)(x)
The value of x from the generated equation is 80. Thus, the science class is 80 minutes long.
Answer:
80%
Step-by-step explanation:
Hope this helps :)
Answer:
The solution for the system of right triangles are, respectively: 
, 
, 
, 
Step-by-step explanation:
By Geometry, we get the following equivalencies:
(45 - 45 - 90 Theorem)
(45 - 45 - 90 Theorem)
(30 - 60 - 90 Theorem)
(30 - 60 - 90 Theorem)
4x=20
4/4x=20/4
x=5
u want to isolate the variable to solve these equations
