The equation y = kx represents a proportional
relationship between x and y, where k is the
constant of proportionality. For a moving object,
the equation d = st represents a proportional
relationship between distance (d) and speed (s)
or between distance (d) and time (t). Explain the
different ways that you can define the constant of
proportionality for this equation. Then describe
some other equations that represent proportional
relationships in the real world and explain why
they're useful. Research on the Internet, if
needed

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it