For this case we have the following functions:
f (x) = 36 + 4x
g (x) = x2 + 15
By matching both functions we have:
f (x) = g (x)
36 + 4x = x2 + 15
Rewriting we have:
x2 + 15 - 4x - 36 = 0
x2 - 4x - 21 = 0
Solving the polynomial we have:
(x-7) (x + 3) = 0
x = -3
x = 7
Taking the positive root we have:
x = 7
Answer:
They will have the same amount of money saved after:
x = 7 weeks
1000 tickets because you would divide 20000 divided by 20 =1,000
3y=2(2+2y); 3y=4+4y; -y=4; y=-4;
18- 9 choices with pancakes and 9 choices with waffles
Answer:
x = 50, y = 10
Step-by-step explanation:
