1km/h
half hours= 30 min
avarage speed= total distance ÷total time
remember it.
If i read the question right.
Four data points with horizontal coordinate 0.9 have vertical coordinates negative 50
Represent algebraically: If b baseball cards were divided equally is total number of cards is 150
<u>Solution:</u>
Given that, if “b” baseball cards were divided equally among 3 people, each person would receive 25 cards less than if the “b” baseball cards were divided equally between 2 people.
We have to represent it in algebraic form.
Now, number of cards per each person when divided among 3 = number of cards per each person when divided among 2 – 25
Hence, total number of cards are 150
The z-score will be given by:
z=(x-μ)/σ
given that:
x=94
μ=mean=84.5
σ=standard deviation=4.4
thus
z=(94-84.5)/4.4
z=2.1591