The following statements are true;
The expression 23h represents the total charge for Elegance Home Painting.
If José hires the painters for 10 hours, then Elegance Home Painting will be cheaper.
If José hires the painters for 20 hours, then Krystal Klean Painting will be cheaper.
Explanation:
Given,
Amount charged by Krystal Klean painting to come out = $175.00
Per 30 minutes charges = $7
1 hour charges would be $14.
Let,
h be the number of hours.
Total cost for Krystal Klean = 14h + 175
Amount charged by Elegance per hour = $23
Total cost = 23h
The expression 23h represents the total charge for Elegance Home Painting.
As Jose will choose from both painters, therefore, he will only hire one.
For 10 hours;
h = 10
Krystal Klean;
Total charges = 175 + 14(10)
Total charges = 175 + 140 = $315
Elegance Home;
Total charges = 23(10) = $230
If José hires the painters for 10 hours, then Elegance Home Painting will be cheaper.
For 20 hours;
h = 20
Krytal Klean,
Total charges = 175 + 14(20) = $455
Elegance Home = 23(20) = $460
If José hires the painters for 20 hours, then Krystal Klean Painting will be cheaper.