8. vanessa quiere invertir $9000. ella invierte parte en certificado de depósito pagando al 8% y
el resto en una cuenta de ahorros al 9% por año. si el interés ganado en un año fue $750,
¿cuánto invirtió en cada una?

The amount invested in certificate of deposit paying at 8% was $6,000 and the amount invested  in a savings account at 9% was $3,000

Step-by-step explanation:

The question in English is

Vanessa wants to invest $9,000. She invests part in certificate of deposit paying at 8% and  the rest in a savings account at 9% per year. If the interest earned in one year was $750,  How much did you invest in each one?

Let

x -----> the amount invested in certificate of deposit paying at 8%

(9,000-x) -----> the amount invested  in a savings account at 9% per year

Remember that

we know that

Solve for x

therefore

The amount invested in certificate of deposit paying at 8% was $6,000 and the amount invested  in a savings account at 9% was $3,000

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