Respuesta :
first I calculate in how many weeks Caroline will get 80$
4$*20 weeks =80$
but Caroline had 20$ at the beginning which means in 20 weeks she will have collected 80$+ 20$= 100$
the answer is after 20 weeks Caroline will have more than 100$in her bank .
4$*20 weeks =80$
but Caroline had 20$ at the beginning which means in 20 weeks she will have collected 80$+ 20$= 100$
the answer is after 20 weeks Caroline will have more than 100$in her bank .
Answer:
Caroline will need atleast 21 weeks to get a balance more than $100, or any number greater than 20 weeks.
Step-by-step explanation:
Caroline starts with $20 in her piggy bank. Each week she adds $4 to the piggy bank.
Let the number of weeks she adds $4 to make more than $100, be x.
Equation forms:
[tex]20+4x>100[/tex]
Solving for x;
[tex]4x>100-20[/tex]
=>[tex]4x>80[/tex]
Dividing by 4 on both sides;
x > 20.
This means that Caroline will need atleast 21 weeks to get a balance more than $100, or any number greater than 20 weeks.
