Answer:
11.25
Explanation:
Hero, we are interested in knowing the length of the model of the ship in cm
Now the ratio of the model to the actual is 1:400
let the length of the model be x
This means that;
1:400 = x: 45
1/400 = x/45
45 * 1 = 400 * x
x = 45/400
x = 0.1125
if we convert this to centimeters, we know that 100 cm equals 1 meter
so 0.1125 m will be 0.1125 * 100 = 11.25