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11-09-2021
Mathematics

contestada

What is the value of x in the equation 4x +8y=40, when y=0.8?
O 4.6
O 8.4
O 10
O 12

Respuesta :

11-09-2021

4x + 8y = 40

4x + 8(0.8) = 40

4x + 6.4 = 40
40 - 6.4 = 33.6

33.6 / 4 = x

33.6 / 4 = 8.4

The answer option 2, 8.4

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