andreaavalos37 andreaavalos37

05-10-2021
Mathematics

contestada

An algebra book weighs 6 oz less
than twice as much as a grammar
book. If 5 algebra books weigh the
same as 8 grammar books, how
much does an algebra book weigh?

Respuesta :

scrublord872 scrublord872

05-10-2021

Answer:

Algebra book weighs 24 oz

Grammar book weighs 15 oz

Step-by-step explanation:

algebra = x and grammar = y

x = 2y-6

5x = 8y

5(2y-6) = 8y

10y - 30 = 8y

2y - 30 = 0

2y = 30

y = 15

x = 2(15)-6

x = 30-6

x = 24

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