# Writing Inequalities

I need some help with this problem.

A number is less than the sum of twice its opposite and five. Find the number.

If by "its opposite" you mean the same number with opposite sign, then if you let x be that unknown number

x < -2x + 5
You can add 2x to both sides and keep the direction of the < the same.
3x < 5
You can divide both sides by 3 and keep the direction of the < the same.
x < 5/3

I'm not sure what you mean by "opposite." If you mean inverse, this would be your formula.

X < 2(1/X) + 5 or 2(1/X + 5)

Even assuming that it is the inverse, your description is not clear enough to know which of the above applies.

I hope this helps. If not, clarify your meaning in another post, and we will do our best to help you. Thanks for asking.

1. 👍 0
2. 👎 0
3. 👁 89

## Similar Questions

1. ### math

the sum of a number and 3 times that number is 76. what is that number? PLEASE HELP ME I DON'T GET IT!!!!!!!! Mathematics is a language, so translate the English into "math" let the number be x "the sum of a number and 3 times

asked by Rebekka on April 18, 2007
2. ### Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it

asked by Anonymous on May 31, 2010
3. ### Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it

4. ### College Algebra

The sum of two numbers is less than 12. The second number is 8 more than the first. What are the possible values for the first of the two numbers? Your problem would look like this X+(X+8)

asked by Karen on July 25, 2007
5. ### maths

Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3. Details and assumptions The digit sum of a number is the sum of all its digits. For example, 1123

asked by rohit on March 21, 2013

This is a reply to the question posted here http://www.jiskha.com/display.cgi?id=1178989522 As I explained there, you can find the parameters by defining: x1 = Sin(0.49 t) x2 = Cos(0.49 t) and treat this as an ordinary linear

asked by Count Iblis on May 13, 2007
7. ### Math

Representing each sum as a single rational number. a.-14 + (-8/9). -14 8/9? b. 7 + 1/9 = 7 1/9? c. -3 + (1/6) = -3 1/6? Do i just add the fraction and number together? and, the last problem is: a student is completing a math

asked by need math hw help on December 12, 2016
8. ### math

Q. five times the sum of 3 and some number is 70. What is the number? I did the problem and got 13...but the answer is 11. I cannot figure out what I am doing wrong?? You must use parentheses when it says sum. 5(x +3) = 70 is

asked by catalina on January 26, 2007
9. ### Math

My question: A spinner looks like this: A disc divided into sections that might or might not be the same size, with a pointer that when spun will land on some part of the disc at random. The sections might be colours, or, as in

asked by Daniel on January 8, 2009
10. ### math

summation of indexed data Could someone please help me I am very confused on this problem.Thank you I have added all the number up and get -31. than it says to find -31- it have the sum with 15 over i=I than after that behind the

asked by mary ann on February 5, 2015
11. ### algebra

One number is 4 times another. If the sum of their reciprocals is 5/36 , find the two numbers. I am total lost on this problem x is a number 4x is another number these should = 5/36 so my equation would be x+4x=5/36 first x i am

asked by RAY on July 6, 2007

More Similar Questions