Please mark brainliest!
Part 1:
Plan 1: y = 25x
Plan 2: y = 120 + 10x
x = number of weeks
y = total money
Part 2:
Plan 1 requires 8.8 weeks.
220/25 = 8.8
Plan 2 requires 10 weeks.
220 - 100 = 100
100/10 = 10 weeks
Plan 1 is best since the money is earned faster.
Answer:
Step-by-step explanation:
x^2 + 2x + 1 = 17
x^2 + 2x = 17 - 1
x^2 + 2x = 16
x^2 + 2x + 1 = 16 + 1
(x + 1)(x + 1) = 17
(x + 1)^2 = 17
x + 1 = sqrt 17
x = -1 (+ - ) sqrt 17
x = -1 + sqrt 17 or x = -1 - sqrt 17 <===