Beth bought 15 tickets to a movie, where adult tickets cost $6.00 and
senior citizen tickets cost $4.00. She spent a total of $76. Which system
of equations will determine the number of adult tickets, a, and the
number of senior citizen tickets, s, Beth purchased?
A. a + s = 15
10as = 76
B. a + s = 15
6a + 4s = 76
C. a + s = 15
4a + 6s = 76
D. a + s = 15
a + s = 76
E. a + s = 76
6a + 4s = 15

  B. a + s = 15

     6a + 4s = 76

Step-by-step explanation:

The two equations you want to write are for the two resources, tickets and dollars. We want to know the numbers of adult and senior tickets, so we assign the variables "a" and "s" to those numbers, respectively. We need to keep the meaning of these variables in mind as we write the equations.

  a + s = 15 . . . . the sum of the numbers of tickets is 15 (resource = tickets)

The amount spent for tickets of a given type will be the number of tickets of that type, multiplied by the cost of tickets of that type. Then 6a represents the amount spent on adult tickets ($6 each for "a" number of tickets).

  6a +4s = 76 . . . the total amount Beth spent on tickets (resource = dollars)

In summary, the two equations are ...

Beth bought 8 adult tickets and 7 senior tickets.

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

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