College Algerbra

posted by .

Solve the inequality. 0.1(0.1x+0.1) _< -0.8

• College Algerbra -

Hint: multiply both sides by 10 and proceed like I showed you in the last one

• College Algerbra -

I got the answer x >_ -81, is that correct?

• College Algerbra -

looking at all those positive numbers on the left, there is no way the inequality sign could have changed.

I am assuming your _ < is ≤ ??

.1(.1x + .1) < -.8
times 10
.1x + .1 ≤ -8
times 10 again
x + 1 < -80
x≤ -81

• College Algerbra -

Thanks Reiny, you assumed correct, how did you get the line under the greater than sign? You are a very smart and kind woman to have been such a great help, Thanks!

• College Algerbra -

I answer most of the questions on a Mac, where I hold down the "option" key as I press the <
There are combinations of key like that on the PC also, I don't have the list handy right now.
BTW, I am an old retired guy, not a woman.

• College Algerbra -

Sorry Mr. Reiny, I guess I should of figured that out since you are so smart at doing the math problems. I do not have an option key on my windows 7 keyboard but I bet there is another way I can do the underline thing. Thanks Again for taking time out of your day to help us Mathematically Challenged students, God Bless You!

Respond to this Question

 First Name School Subject Your Answer

Similar Questions

1. Algebra 2(check) cont..

1)solve the inequality -3(r-11)+15>_9 my answer = r<_13 2)solve the inequality -2<4z+10<_12 my answer = -3<z<_1/2 3)solve the inequality 2x-5<_10 or 33-4x<5 my answer is x<_15/2 or <7 4)solve the inequality …
2. Algerbra I

Help! I don't get this. solve each inequality. Graph the solution set, if there is one. 1. n-4>11 2. 4q<12 3. 2v+1>7 4. a+3<11 5. 36<x/-9 6. -y/2>4 7. -6>s/3 8. x/2-4>-6
3. algerbra(college)

solve the system of equations by graphing -3x - 2y=24 3x-y=-6
4. Algerbra

How do you know if a value is a solution for an inequality?
5. college algebra

Solve absolute value inequality, use interval notations. |4+2x|-3> I know the answer is x>2 or x<-6 But I'm unsure how to solve it. Thanks
6. College Algerbra

Solve the inequality. - 5x / 7 -2>-1
7. equations & inequalities

1.simplify this expression 4p+9+(-7p)+2=?
8. College Algerbra

I=N/P+c, solve for P
9. college algerbra

Describe how you know if an inequality is an “and” or an “or” problem. (use -3 < x+5 < 8).
10. Math-college

Explanation of why the following statement is incorrect. (x + 3)(x -4) < 7, and explain why it is incorrect. To solve (x + 3)(x -4) < 7, start by setting (x + 3) = 7 and (x - 4) = 7. Now solve the inequality. Provide a detailed …

More Similar Questions