Respuesta :

kellyoopsie

Answer:

133

Step-by-step explanation:

38/2=19

1 hour = 19 clean windows

7 hours *19 =133

wegnerkolmp2741o

Answer:

133 windows

Step-by-step explanation:

We can use ratios to solve

38 windows           x windows

----------------------- = ----------------

2 hours                   7 hours

Using cross products

38 *7 = 2x

266 = 2x

Divide each side by 2

266/2 =2x/2

133 =x