tatianacuenca2000 tatianacuenca2000

17-11-2021
Mathematics

contestada

If 21 sandwiches are needed for 14 people, how many sandwiches would be needed for 30 people

Respuesta :

clarch19 clarch19

17-11-2021

Answer:

45 sandwiches

Step-by-step explanation:

create a proportion from sandwiches to people equals sandwiches to people

21/14 = s/30

21/14 can be reduced to 3/2

let 's' = # of sandwiches

3/2 = s/30

cross-multiply to get:

2s = 90

s = 45

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