The salaries of Kofi and Ama are in the ratio 3:5. If the salary of each is raised by ¢4000, the new ratio becomes 40:57. what is Ama's salary

34000

Step-by-step explanation:

New Ratio = 40/57

Gap between numerator & denominator = 17

Original Ratio = 2/3

Gap between numerator & denominator = 1

=> Original Ratio can be restated as 34/51 to make gap of both ratios same.

Difference between two numerators OR denominators = 40 - 34 = 6 or 57 - 51 = 6

If gap is 6, sumit’s original salary = 51

If gap = 4000, sumit’s original salary is :

51/6 x 4000 = 34000

Recheck her work in step 1.

She incorrectly grouped the 2nd two terms as -(9x+33) does not equal -9x+33

Step-by-step explanation:

She needs to recheck what she did in step 1:

-(9x+33) is not -9x+33 but -9x-33

In step 1 she should have wrote (6x^3-22x^2)-(9x-33)