Sara perdió 12 libras durante el verano trotando cada semana. Para el invierno, había ganado 4/3/8 libras. Represente esta situación con una expresión que incluya números con signo. ¿Cuál es el cambio general en el peso de Sara?

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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∠cbe and ∠deb are same-side interior angles.

i took the test

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

roots are from trees

step-by-step explanation: