Kayla0124
contestada

I'll GIVE BRAINLY THING

The cost of 6 sandwiches and 4 drinks is $50. The cost of 3 sandwiches and 6 drinks is $74. How much does one drink cost?

$1.50

$1.75

$2.50

$3.00

Respuesta :

chass1isgreat
let sandwiches and drinks be s and d resp so according to the question,
by 1st case,
6s + 4d = 53
or, d = (53-6s)/4
again by 2nd case,
4s + 6 d = 47
4s + 6(53-6s)/4 = 47
or, (8s +159-18s)/2=47
or 159-10s = 94
or 65 =10s
or, s = $6.5

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