contestada

a food truck sells salads for $6.50 each drink for $2.00 each. the food trucks revenue fron selling a total of 209 salads and drinks in one day was $836.50. if the truck sold a total of. 116 drinks
how much salads were sold that day?

Respuesta :

S = # of salads
d = # of drinks

$6.5s + $2d = $836.5
s + d =209

1. Isolate a variable.

s = 209-d

2. Plug in.

6.5 (209-d) + 2d = 836.5

1358.5 - 6.5d + 2d = 836.5
-4.5d = -522
d = 116

s = 209 - 116 = 93
116*2=232
and 232-836.5=604.5 and 604.5/6.5=93 so 93 salads were solo that day