Answer:
y = - 
x + 6
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (4, 0) ← 2 points on the line
m = 
= 
= -
Since the line crosses the y- axis at (0, 6) ⇒ b = 6
y = - x + 6 ← equation of line
Answer:
B
Step-by-step explanation:
If -10 is 10 seconds before he finishes his first lap, and 10 is 10 seconds after he finishes his first lap, whats in the middle of that?! 0 of course, so thats when he finishes his first lap.
Answer:
B. Jenny paid $322 for 23 T-shirts, which is a rate of $14 per T-shirt.
Step-by-step explanation:
To find the rate per shirt, divide the cost by the number of shirts:
322/14
= 14
So, she paid $322 at a rate of $14 per shirt.
Therefore, B is correct.
Answer:
5.0034 kg's
Step-by-step explanation:
Answer:
48%
Step-by-step explanation:
We have 3 people and 5 floors
We can't have two or more people leaving in the same floor.
So, the first person to leave has 5 possibilities (all 5 floors)
Then, the second person will have only 4 possibilities, as this person can't leave in the same floor as the first one.
Lastly, the third person will have only 3 options (the 3 remaining floors that weren't selected).
The total number of possible choices, without restrictions, is 5 possibilities for each person, so 5*5*5 = 125 combinations
The combinations we want is 5*4*3 = 60 combinations
So the probability of all people choosing different floors is 60/125 = 0.48 = 48%
