What is the value of [tex]x[/tex] in the equation [tex]4x + 8y = 40[/tex] when [tex]y = 0.8[/tex]?

Question

luana · Answer

4 x + 8 y = 40 w h e n y = 0.8 : 4 x + 8 ⋅ 0.8 = 40 4 x + 6.4 = 40 ∣ s u b t r a c t 6.4 4 x = 40 − 6.4 4 x = 33.6 ∣ : 4 x = 8.4 ​

www123gul · Answer

now first of all we should plug in 0.8 to y . now we have this simple equation: 4x+8.(0.8)=40 4x+6.4=40 4x=33.6 x=8.4 **(****hope it helps :) ) **

luana · Answer

The value of x in the equation 4 x + 8 y = 40 when y = 0.8 is 8.4 . This is found by substituting the value of y , rearranging the equation, and solving for x . 
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What is the value of [tex]x[/tex] in the equation [tex]4x + 8y = 40[/tex] when [tex]y = 0.8[/tex]?

Answer (3)

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