Question

Mia has $40 in a savings account. She will start adding $5 to her account each week. Juan has $15 in a savings account. He will start adding $10 to his account each week.
Let x represent the number of weeks each person adds money to his or her savings account. Let y represent the total number of dollars in the account. Write a system of two linear equations to represent the situation.

Answer 1

Y=40+5x
For an example, say Mia wanted to add $5 into her account each week for 2 weeks.
y=40+5(2)
5(2)=10
y=40+10
y=50
Mia will have a total of $50 in her account if she added $5 for each week for 2 weeks. Same for Juan, his equation will be based off his amount y=15+10x