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attashe74 [19]
3 years ago
5

(15 POINTS!) The graph shows the distance a ghost crab can run over time the D equals the distance in meters and the t equal the

time in seconds which is a direct variation equation for this relationship
A. d= 3/5t
B. d = 5/3t
C. t= 5/3d
D. t= 2/5d

Mathematics
1 answer:
marta [7]3 years ago
6 0

Answer:

Option B. d = 5/3t

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

d -----> the distance in meters

t ----> the time in seconds

Looking at the graph we have the point (3,5)

That means ----> For t=3 sec, d=5 m

<em>Find the value of k</em>

k=d/t

substitute the value of y and the value of x

k=5/3

The linear equation is

d=kt

substitute the value of k

d=\frac{5}{3}t

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