Answer:
Anything. Variables look like anything, because a variable is just a placeholder for whenever you want to put in another number.
Some examples: x, y, Ф, β
The solution of the equation 20x = x + 3 will be 3 / 19. Then the correct option is A.
<h3>What is Algebra?</h3>
The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.
Ten times a number, x, is one-half the sum of the number and three. Then the equation will be
10x = 1/2(x + 3)
Simplify the equation, then we have
20x = x + 3
19x = 3
x = 3 / 19
The solution of the equation 20x = x + 3 will be 3 / 19. Then the correct option is A.
The missing options are given below.
A. 10x = 1/2(x + 3)
B. 10x = 1/2x
C. 10x = 1/2x + 3
D. 10x = (x + 3)
More about the Algebra link is given below.
brainly.com/question/953809
#SPJ4
Answer:
344 m^2
Step-by-step explanation:
Area of the 2 triangles: (2)(1/2)(10)(5)=50
Area of three sides:3(7)(14)=294
294+50=344
Remark
Writing down the givens for these questions is almost a command. You must know which equation of the big 4 to use. The givens + what you want to find will determine the equation.
Givens
vi = 30.7 km/hr = 30.7 km/hr *[1000m/1km]*[1hr/3600sec] = 8.52m/sec
vf = 120 km/hr = 120 km/hr * [1000 m/1 km]*[1h/3600 sec] = 33.3 m/s
t = 4.9 seconds
d = ???
Formula
d = (vi + vf)*t/2
Solve
d = ( 33.3+8.52 )*4.9/2
d = (41.85333)*4.9/2
d = 205.02/2
d = 102.51 m<<<Answer
