Question

Kate already has $55 dollars in her savings account. If
she puts $5 per week in her account, write and solve an
inequality to determine how many weeks she must save to
have at least $100 in her account. Interpret the solution.

Answer 1

What is your first attempt?
Even if you just add the number 5 to 55 until you get up to 100, you will have a starting idea.
What do you think?

Answer 2

let x be number of weeks
total = 55 + 5x

if you want to find the total for $100, isolate for the variable x
100 = 55 + 5x
(subtract 55 from both sides)
45 = 5x
(divide both sides by 5 to isolate x)
9 = x
therefore it will take 9 weeks to get $100
and you can check this by putting 9 back into the equation
total = 55 + 5(9)
total = 100

Answer 3

55 + 5w > 100
5w = 45
w = ?

Answer 4

Wow! We are definitely thorough as tutors : ) From the gentle nudge, to the exceptionally helpful : )
Hats off Ms Sue and Mat : )