Question

writing and evaluating a Llanodels d I. Joe is putting money into a savings account. He starts with $350 in the savings account, and each week he adds $30. Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Joe has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 18 weeks. DEU Equation: 0 x P Total amount of money after 18 weeks:

Answer 1

we have that

the linear equation in slope-intercept form

is equal to

S=mW+b

where

m=$30 per week (is the slope or unit rate)

b=$350 (initial amount)

therefore

the equation is

S=30W+350

After 18 weeks

For w=18 weeks

substitute

S=30(18)+350

S=$890