nolanbeck11p5u0qg nolanbeck11p5u0qg

11-09-2021
Mathematics

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

Respuesta :

rlew88950 rlew88950

11-09-2021

4x + 8y = 40

When y = 0,8 :

4x + 8*0,8 = 40
4x + 6,4 = 40
4x = 40 - 6,4
4x = 33,6
x = 33,6/4
x = 8,4

Answer : 8,4

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