Answer :
Answer:
4 months
Step-by-step explanation:
y=179+40x. Equation 1
y=31+77x. Equation 2
179+40x=31+77x. Replace y from equation 1 and replace y of equation 2
148=37x
4=x
Answer:
4 months
Step-by-step explanation:
y=179+40x. Equation 1
y=31+77x. Equation 2
179+40x=31+77x. Replace y from equation 1 and replace y of equation 2
148=37x
4=x