Answer:
37.5 minutes
Step-by-step explanation:
You must find the rate at which she can make sandwhiches and use that to find your answer
Ok, so we know she can make 6 sandwiches in 15 minutes. So, in 30 minutes she can make 12 sandwiches. It takes her 2.5 minutes to make one sandwhich. Therefore for another 3 sandwiches it would take 7.5 minutes.
Answer: 37.5 minutes to make 15 sandwiches
7/15
Area of a rectangle: length × width
A = 600 × 270
A = 162,000 meters
162,000 meters ⇒ 16.2 hectares
Excluding the shipping fee -
23 - 4 = 19
For each book-
19/5
= $3.8
