Answer:
15:21 = 5:7
Step-by-step explanation:
21/7 = 3
5 x 3 = 15
The answer you are looking for is 2& 3/10
Answer:
Scale factor for the drawing from actual park = 
Area of the actual park = 1200 cm²
Step-by-step explanation:
Length of the rectangular city park = 5 cm
Width of the rectangular park = 6 cm
Using scale factor 1 cm = 20 meters
Scale factor = 

Actual length = 5 × 20 = 100 meters
Actual width = 6 × 20 = 120 meters
Area of the rectangular park = length × width
= 100 × 120
= 1200 square meters
Therefore, Scale factor from actual length to the length in drawing = 1 : 20
Area of the rectangular park = 1200 square feet
(3.5, 16)
Midpoint Formula is
((x1+x2)/2, (y1+y2)/2)