Three relationships are described below: I. The amount of fuel used on a trip increases as the size of the car increases and as
the distance traveled increases. II. As the number of people helping mow a lawn increases, the time it takes to mow the lawn decreases. III. The cost of having a house painted increases as the size of the house increases. What type of variation describes each relationship?
Variation are of 2 types: Direct variation that states 'if x increases, y increases'. And inverse variation which states ' if x increases, y decreases and y increases x increases'.
1. The amount of fuel used on a trip increases as the size of the car increases and as the distance traveled increases. = Direct variation
2. As the number of people helping mow a lawn increases, the time it takes to mow the lawn decreases = Inverse variation
3. The cost of having a house painted increases as the size of the house increases. = Direct variation
4.6 To have as result 5 as average that means that all the numbers together must add 25 But it is 23 It USA little more than 4 and a little less than 5. 4x5 = 20. 5x5= 25 The difference is 5 3 is a little more than 2.5 So It makes sense that is 4.6 and no 4.5
