sawarian24 sawarian24

03-09-2020
Mathematics

contestada

What is the value of y in the equation 6.4x + 2.8y = 44.4, when x = 3?

Respuesta :

jimrgrant1 jimrgrant1

03-09-2020

Answer:

y = 9

Step-by-step explanation:

Given

6.4x + 2.8y = 44.4 ← substitute x = 3 into the expression

6.4(3) + 2.8y = 44.4

19.2 + 2.8y = 44.4 ( subtract 19.2 from both sides )

2.8y = 25.2 ( divide both sides by 2.8 )

y = 9

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