Pedro walks at a rate of 4 miles per hour and runs at a rate of 8 miles per hour. Each week, his exercise program requires him to cover a total
distance of 20 miles with some combination of walking and/or running.
a. Write an equation that represents the different amounts of time
Pedro can walk, x, and run, y, each week.
b. Graph the equation.
c. What is the y-intercept? What does this tell you?
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where's the diagrams?

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

b.

step-by-step explanation:

i just know