Answer:
The afrmer had 480 chickens at first
Step-by-step explanation:
We make an assumption here, that the initial number of chickens that the farmer has, is C.
Chickens sold by the farmer is (20% of C) + 240 chickens
Number of chickens left after selling in the morning and afternoon is 30% of C
So, the <em>first number of chickens = Number of chickens sold + Number of chickens left</em>
This gives us an equation that will be solved to obtain C.
C = ( × C) + 240 chickens + ( × C) = 0.2C + 240 chickens + 0.3C
C = 0.5C + 240 chickens
C - 0.5C = 240 chickens
0.5C = 240 chickens
C =
C = 480 Chickens
What you can do is see it like this 20x50 or take 5x2 which is 10 and then count how many zeroz there are in the original equation and add them. Since there are 2 zeros you add them to the 10, so the answer will be 1000.
Answer:
Friction is a force between two surfaces that are sliding, or trying to slide, across each other.
Step-by-step explanation:
For example, when you try to push a book along the floor, friction makes this difficult.
Answer:
False
Step-by-step explanation:
Regression model is a set of statistical process which estimates the relationship between two variables. The one variable is dependent variable and the other is independent variable. The statistician should not use printout C to perform a t-test in regression model.