C= Colorado B= Boston C + B = 464 C = 1.2B Substitute the known value of C from the second equation into the first C + B = 464 (1.2B) + B = 464 2.2B = 464 Divide each side by 2.2 B = 210.9, rounded to 211 (it's asking for days, not partial days, so round) If Boston has 211 days of sunshine , then Colorado Springs has 1.2 times that amount. 211 * 1.2 = 253.2 (rounded to 253) Verification 211 + 253 = 464
