Question

Hayley has $155 in savings, and her brother Hank has $230. Hayley is saving $10 each week, and her brother is spending $15 each week. After how many weeks will their savings accounts have the same amount of money in them? *

Answer 1

Explanation:

Hayley: y = 10x + 155

Hank: y = -15x + 230

10x + 155 = -15x + 230

25x + 155 = 230

25x = 75

x = 3 weeks