Question

Sonia opened a savings account and then added the same amount to the savings account eyery week. After 5 weeks, her savings account had a total of $45. After 10 weeks, her savings account had a total of $70, Which equation represents the amount of money V.), in dollars, in Sonia's savings account after x weeks? y = 7x = y = 5x + 20 y = 20x + 5 ​

Answer 1

Answer:

since Sonia saved 45$ in 5 weeks and 70$ in 10 weeks. we are to find the amount she saved up in x weeks.

let's make the amount y

so x= y

5 = 45 cross multiplying the values

we then have 45x= 5y

y= 7x

x=y

10=70

10x = 70y

y= 7x = y=5x+ 20, y = 20x+5