Diane is putting money into a saving account. She starts with $550 in the savings account, and each week she adds $60.
Let S represent the total amount of money in the savings account ( in dollars), and let W represent the number of weeks Diane has been adding money. Wrote an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 18 weeks.
The equation relating S to W is:
S = 550 + 60W
To find the total amount of money in the savings account after 18 weeks, we plug in W = 18 into the equation:
S = 550 + 60(18)
S = 550 + 1080
S = 1630
After 18 weeks, Diane will have a total of $1630 in the savings account.