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

RudyVerboven asked Mar 26, 2022

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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

RudyVerboven asked Mar 26, 2022

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20 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

Nadene answered Apr 2, 2022

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