Answer:
312km
Step-by-step explanation:
1. Multiply. 4800 x 7% = 3744
2. Divide. 3744 / 12 = 312km sq.
So the area after 12 years is 312 km sq.
<u>Scale - Convert to meters and reduced it to 1 cm:</u>
3 cm : 1000 cm | GIven
3 cm : 10m | Convert 1000cm to 10m
1 cm: 10/3 m | Find 1 cm
<u>Convert the dimensions to the actual:
</u>
7.5 cm = 7.5 x 10/3 = 25m | Convert 7.5cm on map to actual distance
15 cm = 15 x 10/3 = 50m | Convert 15m on map to actual distance²
<u>Find area of the actual pool:</u>
Area = 25 x 50 = 1250 m² | Use the formula Area = Length x Width
Answer: 1250 m²