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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
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2 votes
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

User Mishod
by
5.0k points

1 Answer

4 votes
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
User Chenna V
by
5.2k points
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