My last one for tonight .. #catchinguponworksolving equations with two variables example solve x + y = 6 if x = 3 x + y = 6 3 + y = 6 3 + 3 = 6 y = 3 another example solve y - x = 2. if x = 9 y - x = 2 y - 9 = 2 11 - 9 = 2 y = 11 first question solve each equation if x = 5 1. 1 = y - x 2. x ÷ 5 = y 3. 5x = y 4. y ÷ x = 7 5. xy= 20 6. x = 2 + y 7. 9 - y = xsolve each equations if y = 10 1. x - y = 4 2. y ÷ 2 = x 3. 5y = x 4. y - 3 = x 5. 3y = x 6. y + 3 = x 7. x ÷ 9 = y 8. y - x = 0

Change negative exponents to positive, then solve

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes