Respuesta :
15 meals x $0.80 = $12.
$18 - $12 = $6.
If one movie ticket is $3 then she must have purchased 2 with $6.
Part A - 15x0.8=18-x=x
Part B-
15 x 0.8 = 12
18- 12=6
Part C- 2
$18 - $12 = $6.
If one movie ticket is $3 then she must have purchased 2 with $6.
Part A - 15x0.8=18-x=x
Part B-
15 x 0.8 = 12
18- 12=6
Part C- 2
part A-
3t + .80m = 18 (t - tickets) (m - meals)
we already know m = 15 so our equation would turn into
3t + .80(15) = 18
3t + 12 = 18
part B-
3t + 12 = 18
subtract 12 from both sides
3t + 12 = 18
-12 -12
then, 3t= 6
and, we know 3 goes into 6 two times meaning t=2
part C- Erica purchased 2 movie tickets last month