The intersection of the two sets is the list of members that appear in both sets. That is {3}.
Your statement is FALSE.
Y = number of yellow marbles
r = number of red marbles
The total number of marbles
y+r=61
The number of yellow marbles compared to red.
y=2r+4
Substitute the second equation into the first equation because they are the same variable and, therefore, are the same number.
2r+4+r=61
Simplify
3r+4=61
Subtract 4 from both sides
3r=57
Divide both sides by three
r=19
We have the number of red marbles, but we are looking for the number of yellow marbles, so plug the 19 red marbles into either equation.
y=2(19)+4
or
y+19=61
Simplify
y=42
__________________
Answer:
42 yellow marbles
__________________
Equations:
y+r=61
y=2r+4
Answer:
negative
Step-by-step explanation:
2+-6=-4
Answer:
29013
Step-by-step explanation:
Do PEMDAS. Multiply 69 and 420 and 1 and 44. Then you will get 28980+77-44. Then add and subtract from there. Answer is 29,013.
Multiplying a 1/4 times 12 gets you the same answer as 12 divided by 4