+2448 1) Given the proportion a/b = 11/20 , what ratio completes the equivalent proportion a/11 = ? (The answer needs to be a fraction)
2) A model is made of a car. The car is 3 meters long and the model is 4 centimeters long. What is the ratio of the length of the car to the length of the model?
+129852 1) Given the proportion a/b = 11/20 , what ratio completes the equivalent proportion a/11 = ? (The answer needs to be a fraction)
Notice something, RP
If
5/10 = 1/2 then it is also true that the ratio of the numerators to the ratio of the denominators is the same....that is :
5/1 = 10/2
This implies that
a /b = 11/20 means that
a / 11 = b / 20
Do you see this??
2) A model is made of a car. The car is 3 meters long and the model is 4 centimeters long. What is the ratio of the length of the car to the length of the model?
Equate units in terms of centimeters
3 m = 300 cm
Ratio : actual length / model length = 300 cm / 4 cm = 75 / 1 = 75 : 1
