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a local hamburger shop sold a combined total of 478 hamburgers and cheeseburgers on sunday. there were 72 fewer cheeseburgers sold than hamburgers. how many hamburgers were sold on sunday?

275 hamburgers.

Step-by-step explanation:

Let hamburgers = x

Let cheeseburgers = y

A combined total of 478 were sold on sunday, with 72 cheeseburgers less than hamburgers. Set the equations:

x + y = 478

y = x - 72

Plug in x - 72 for y:

x + (x - 72) = 478

Combine like terms:

2x - 72 = 478

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, add 72 to both sides:

2x - 72 (+72) = 478 (+72)

2x = 478 + 72

2x = 550

Isolate the variable, x. Divide 2 from both sides:

(2x)/2 = (550)/2

x = 550/2

x = 275.

275 hamburgers were sold on sunday.

c: lkllmn.

hope it's you

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