Answer:
Step-by-step explanation:
Given
Stage 20 has circles
Considering at each consecutive stage circle doubles itself
So at stage 21, there will be circles
THE ANSWER IS B BECAUSE I TOOK THIS QUIZ ALREADY
Answer:
Step-by-step explanation:
So we have the system:
If we isolate the x-variable in the first equation:
Subtract 2y from both sides:
Divide both sides by -1:
Therefore, we would substitute the above into the second equation:
The answer is 2y+6
Further notes:
To solve for the system, distribute:
Simplify:
Subtract:
Divide:
Now, substitute this value back into the isolated equation:
The ratio of red to green is 2:5
N is the same as 17, so it equals 17.