F(3k)=3k +7 Equals 9k+7. So 9k+7 would be the Answer.
6+4+3= 13 coins
There are 20 coins so you have to subtract 20-13+7
So, Ms. Mitchell has 7 nickels in her purse
Answer:
No solutions.
Step-by-step explanation:
y = 5/2x + 2
2y = 5x + 8
Plug the first equation into the second.
2(5/2x + 2) = 5x +8
5x + 4 = 5x + 8
<em>5x + 4 cannot equal 5x + 8, so this system of equations has no solutions.</em>