Answer: x+y=21, 3x+4y=68
Explanation:
Here x represents the number of small button and y represents the number of large button,
And, According to the question,
Total number of button = 21
Thus, x + y = 21
Also, She sells the small buttons for $3 and the large buttons for $4, and earns a total of $68
That is, 3x + 4y = 68
Thus, the system of equations that can be used to calculate the number of large and small buttons sold are,
x + y = 21, 3x + 4y = 68
First Option is correct.
The answer would be 12 because Carbon has 6 Protons, which means that it has the same number of neutrons and electrons.
Answer:
The correct answer is option-C
Explanation:
Anastosomes is a connection between the two interconnected tubular structures like in the loops of intestine or the blood vessels.
The anastomy between the blood vessels is known as the circulatory anastomosis. The connection is formed between the arteries and arteries or between veins and veins or between arteirs and veins.
The anastosome connections forms the bypass route for the flow of blood if one pathway of blood id blocked.
Thus, option-C is the correct answer.