Diana and sue made $ 241.5 per week
Solution:
Given that Diana and Sue clean homes for a summer job
The charge 70$ per house plus 15% tip
charge = $ 70 plus 15 % tip
So 15 % tip is made for $ 70
charge per house is given as:
charge per house = 70 + 15 % of 70
[tex]\rightarrow 70 + 15 \% \times 70\\\\\rightarrow 70 + \frac{15}{100} \times 70\\\\\rightarrow 70 + \frac{15}{10} \times 7\\\\\rightarrow 70 + 1.5 \times 7 = 70 + 10.5 = 80.5[/tex]
Thus charge per house is $ 80.5
If they clean 3 house per week, then the total charge is:
charge for 3 house = charge for 1 house x 3
[tex]\text{ charge for 3 house} = 80.5 \times 3 = 241.5[/tex]
Thus Diana and sue made $ 241.5 per week