SOLUTION: I have been working on this problem for a while and have gotten several different answers.
0.4x + 3 ≤ 0.8x – 6
I believe solving is easier if I get rid of the decimal
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-> SOLUTION: I have been working on this problem for a while and have gotten several different answers.
0.4x + 3 ≤ 0.8x – 6
I believe solving is easier if I get rid of the decimal
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Question 147824: I have been working on this problem for a while and have gotten several different answers.
0.4x + 3 ≤ 0.8x – 6
I believe solving is easier if I get rid of the decimals by multiplying by 10. Do I multiply every term by 10 or only the terms with decimals?
0.4x + 3 ≤ 0.8x – 6
40x + 30 ≤ 80x – 60
Subtract 80x from both sides
-80x + 40x + 3 ≤ - 60
Subtract 30 from both sides
-80x + 40 x ≤ -60 – 30
-40x ≤ -90
Flip the inequality sign around because I am dividing by a negative number
-40x ≥ -90
x = -90 divided by -40
or 2.25
I this correct?
Thank you very much
You can put this solution on YOUR website! Remember you can always check whether your answer is correct by plugging it back into your original equation.
Your answer led to a false statement.
It is not correct. Multiply by 10, that's a good idea. <--- This is the line where you made your mistake
Yes, you need to multiply each term on both sides by 10.
You made a small multiplication mistake on both sides.
10(0.4)=4, you had 40.
10(0.8)=8, you had 80.
I think you can take it from there and finish it.
Please re-post if you need any more help.
