5x + 7> 1/2(10x + 14)?
回答 (13)
2009-03-18 4:12 pm
✔ 最佳答案
This is false. Here's why.5x + 7 > (1/2)(10x + 14)
Multiply the half through the parenthesis:
5x + 7 > 5x + 7
Now subtract 7 from both sides:
5x > 5x
Now divide both sides by 5
x > x
A number is only equal to itself. It cannot be greater than or equal to itself, so this is FALSE
You could have subtracted 5x from both sides too, to get:
0 > 0
which is FALSE for the same reason, except you have two specific values that you're comparing.
So there is no real solution to this problem.
2009-03-18 4:20 pm
Suppose it were true:
2(5x+7 ) > 10x+14
10x+14 > 10x+14
answer :false:
anything cannot be greater than itself.
So, 5x + 7> 1/2(10x + 14) is false.
2(5x+7 ) > 10x+14
10x+14 > 10x+14
answer :false:
anything cannot be greater than itself.
So, 5x + 7> 1/2(10x + 14) is false.
2009-03-18 4:18 pm
Is 1/2(10x + 14) = (1/2)(10x+14) or 1/[2(10x + 14)]?
In case of first its a contradiction.
In the second case I must kow which class if this for!
In case of first its a contradiction.
In the second case I must kow which class if this for!
2009-03-18 4:13 pm
5x + 7> 1/2(10x + 14)?
i believe this question is wrong.
5x + 7> 1/2(10x + 14) (multiplying the whole thing by 2 to get rid of 1/2)
10x+14>10x+14
i believe this question is wrong.
5x + 7> 1/2(10x + 14) (multiplying the whole thing by 2 to get rid of 1/2)
10x+14>10x+14
2009-03-18 4:13 pm
5x + 7 > 5x + 7
5x - 5x + 7 - 7 > 5x - 5x + 7 - 7
0 > 0
Your equation is equal.
5x - 5x + 7 - 7 > 5x - 5x + 7 - 7
0 > 0
Your equation is equal.
2009-03-18 4:12 pm
5x + 7 > 1/2(10x + 14)
5x + 7 > (10x + 14)/2
5x + 7 > 5x + 7
0 > 0
(no solutions)
5x + 7 > (10x + 14)/2
5x + 7 > 5x + 7
0 > 0
(no solutions)
2009-03-18 4:12 pm
Distribute the 1/2 on the right-hand side into the parenthetical expression:
½(10x + 14) = (½ * 10x) + (½ * 14) = 5x + 7
Now we have:
5x + 7 > 5x + 7
It's easy to see that these are the same expression. So, no value of x will ever make this true. There is no solution.
½(10x + 14) = (½ * 10x) + (½ * 14) = 5x + 7
Now we have:
5x + 7 > 5x + 7
It's easy to see that these are the same expression. So, no value of x will ever make this true. There is no solution.
2009-03-18 4:11 pm
5x + 7 (more than) 5x + 7
5x - 5x is more than 0
o is more than 0?
Can't do it - it doesn't work it is equal to not more than!
5x - 5x is more than 0
o is more than 0?
Can't do it - it doesn't work it is equal to not more than!
2009-03-18 4:11 pm
Distribute the 1/2 on the right:
5x+7>5x+7
Subtract 5x from both sides:
7>7
Since this statement is FALSE, there is no solution.
5x+7>5x+7
Subtract 5x from both sides:
7>7
Since this statement is FALSE, there is no solution.
2009-03-18 4:11 pm
Will assume that you mean :-
5x + 7 > (1/2) (10x + 14)
10x + 14 > 10x + 14
Something fishy do you think ? !!
5x + 7 > (1/2) (10x + 14)
10x + 14 > 10x + 14
Something fishy do you think ? !!
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