Answer:
You bake 21 chocolate chip cookies.
Step-by-step explanation:
Since the ratio of chocolate chip to oatmeal is 7:5, the ratio is now ?:15. You multiplied the number of oatmeal cookies by 3, which means you must now multiply the number of chocolate chip cookies by the same number. 7 times 3 is 21.
Infinitely many solutions
Solve y = 3x+1 for y
y = 3x+1
Substitute 3x+1 for y in -6x+2y = 2
−6x+2y = 2
−6x+2(3x+1) = 2
2=2
2+−2=2+−2
0=0
