Answer:
Charges are both negative and positive as such negative charges are drawn to positive charges and the same with positive being drawn to negative
this can be explained because the human body has natural medals in that attract negative and positive charges just like metal.
Answer:
3/4
Step-by-step explanation:
Answer:
12222
Step-by-step explanation:
Answer:
190.
Step-by-step explanation:
Answer:
$720
$360
Step-by-step explanation:
Let the cost of couch be A and that of coffee table be B
Given couch and coffee table cost $1080
That’s
A + B = $1080
Also, the cost of couch A is 2 times the cost of coffeee table B.
That’s
A = 2B
We now have two equations
A + B = 1080
A = 2B
Now ,substitute 2B for A in the first equation .
We have
A + B = 1080
2B + B = 1080
3B = 1080
Divide both sides by 3
3B/3 = 1080/3
B = 360
The coffee table cost $360
Remember A = 2B
Therefore
A = 2 x $360
A = $720
The couch cost $720 while the coffee table cost $360
