A model of a brdge is 1m long and 2.5% of the actual size of the bridge. How long is the actual bridge?
40 meters. if 1m = 2.5%
then 2.5% * 40 = 100.
so 1 * 40 = 40 meters
100/2.5 = 40
Answer equals 40 meters.
To find the length of the actual bridge, we can use the concept of ratios.
Let's set up a proportion:
Length of the model bridge / Length of the actual bridge = Scale factor
We are given that the model bridge is 1m long and it is 2.5% of the actual size of the bridge. So the scale factor is 0.025 (since 2.5% is equivalent to 0.025).
Let x be the length of the actual bridge.
1m / x = 0.025
To solve for x, we can cross multiply:
1m * 1 = x * 0.025
1 = 0.025x
Divide both sides by 0.025:
1 / 0.025 = x
x = 40
Therefore, the length of the actual bridge is 40 meters.
To find the length of the actual bridge, we can set up a proportion and solve for the unknown value.
Let's call the length of the actual bridge "x".
The model of the bridge is 1 meter long and represents 2.5% of the actual bridge. This can be written as:
1m = (2.5/100) * x
To solve for x, we can cross-multiply and then divide:
1 * 100 = 2.5 * x
100 = 2.5x
Now, divide both sides of the equation by 2.5 to isolate x:
100 / 2.5 = x
x = 40
Therefore, the actual length of the bridge is 40 meters.