ANSWER


EXPLANATION
The given system of equations is

and

We substitute equation (1) into equation (2) to get;


We group similar terms


Divide both sides by -5.

Put x=6 into equation (1).



Answer:
60 and 100
Step-by-step explanation:
Look for 2 multiples of 20 which are also factors of 300.
No long explanation needed
Answer: I am pretty sure it is 243 J
Explanation: Because I did the math but I don't know how to put the picture ans don't wanna type it xd
I believe its... 21 × 10 = 210
Answer:
TP = 13
Step-by-step explanation:
The height of the trapezoid can be found from the area formula:
A = (1/2)(b1 +b2)h
h = 2A/(b1 +b2) = 2(100)/(32 +8)
h = 5
The horizontal length of each triangular end of the trapezoid is ...
(32 -8)/2 = 24/2 = 12
so the hypotenuse of the triangular end of the trapezoid is ...
TP = √(12^2 +5^2) = √169
TP = 13
The sides of the trapezoid have length 13 units.