arlenejimenez074 arlenejimenez074

26-05-2021
Mathematics

contestada

Suppose that 13 inches of wire costs 78 cents.
At the same rate, how much (in cents) will 7 inches of wire cost?

Respuesta :

clarch19 clarch19

27-05-2021

Answer:

$0.42

Step-by-step explanation:

create a proportion:

13/.78 = 7/x

cross-multiply to get:

13x = 7(.78)

13x = 5.46

x = 5.46/13

x = .42

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