write and solve an equation for the problem. If 14 empty water bottles weigh 4.5 pounds, what will 9 empty water bottles weigh?
1 answer:
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Answer:
59 minutes
Step-by-step explanation:
In the table of values it is observed that for each day of training 2 minutes are increasing and that day 1 begins with 5 minutes of training , so
, where x= evaluation day
we have to for the day 28
Answer:
y = 7x - 10
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (2, 4) and (x₂, y₂ ) = (1, - 3)
m = =
= 7, thus
y = 7x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (2, 4), then
4 = 14 + c ⇒ c = 4 - 14 = - 10
y = 7x - 10 ← equation of line