# Thread: Davied has less than one-half the number of balloons that kaite has .

1. ## Davied has less than one-half the number of balloons that kaite has .

1. Davied has less than one-half the number of balloons that kaite has . If David has d balloons and kite has K balloons has ,which of the following equations correctly express the relationships between d and k.
a. d= 1/2 (k+4)
b. d= 1/2 (k-4)
c. d= 1/2 k+4
d.d= 1/2 k-4
e. d=2 k-4

2. Originally Posted by mariam90
1. Davied has less than one-half the number of balloons that kaite has . If David has d balloons and kite has K balloons has ,which of the following equations correctly express the relationships between d and k.
a. d= 1/2 (k+4)
b. d= 1/2 (k-4)
c. d= 1/2 k+4
d.d= 1/2 k-4
e. d=2 k-4

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3. Originally Posted by mariam90
1. Davied has less than one-half the number of balloons that kaite has . If David has d balloons and kite has K balloons has ,which of the following equations correctly express the relationships between d and k.
a. d= 1/2 (k+4)
b. d= 1/2 (k-4)
c. d= 1/2 k+4
d.d= 1/2 k-4
e. d=2 k-4
I think you have copied the question incorrectly. Clearly you misspelled the names (so that each is spelled in two different ways); also you omitted a number, since as stated this would be an inequality ("__ is less than __"), not an equation ("__ is 4 less than __"). Copying incorrectly can make it impossible to solve a problem.

I think the correct question is this:

1. David has 4 less than one-half the number of balloons that Kate has . If David has d balloons and Kate has k balloons, which of the following equations correctly expresses the relationship between d and k?
a. d= 1/2 (k + 4)
b. d= 1/2 (k - 4)
c. d= 1/2 k + 4
d. d= 1/2 k - 4
e. d= 2k - 4

Is that correct?

Now, what do you think the answer might be, and why? By showing your thoughts, you give us a chance to identify where you are having trouble, and help you better. We don't just give answers.

4. Originally Posted by mariam90
1. Davied has less than one-half the number of balloons that kaite has . If David has d balloons and kite has K balloons has ,which of the following equations correctly express the relationships between d and k.
a. d= 1/2 (k+4)
b. d= 1/2 (k-4)
c. d= 1/2 k+4
d.d= 1/2 k-4
e. d=2 k-4
For clarity, problem could be presented this way:

If d < k/2, which of the following equations correctly
express the relationships between d and k?
1: d = (1/2) * (k+4)
2: d = (1/2) * (k-4)
3: d = (1/2)*k + 4
4: d = (1/2)*k - 4
5: d = 2*k - 4

Unless I goofed up, 2 of the equations are applicable.

5. Originally Posted by Denis
For clarity, problem could be presented this way:

If d < k/2, which of the following equations correctly
express the relationships between d and k?
1: d = (1/2) * (k+4)
2: d = (1/2) * (k-4)
3: d = (1/2)*k + 4
4: d = (1/2)*k - 4
5: d = 2*k - 4

Unless I goofed up, 2 of the equations are applicable.
If I'm wrong about a 4 having been dropped from the question, then it is still worded incorrectly. None of the equations "correctly express the relationships"; two of them are possible relationships (that is, are compatible with the inequality), but we can't say that any of them are necessarily correct.

6. Originally Posted by Dr.Peterson
...but we can't say that any of them are necessarily correct.
Agree.

7. After a couple coffees, I fully agree with "4" having been dropped
the way you describe it.
Results in d = k/2 - 4
Then only one of the 5 choices is correct.
Thanks Dr.P.

8. ## mariam90

sorry or replying late i have problem with internet connection i there any formula for solving this question i am confused between "a " and "d" .

9. Originally Posted by Denis
After a couple coffees, I fully agree with "4" having been dropped
the way you describe it.
Results in d = k/2 - 4
Then only one of the 5 choices is correct.
Thanks Dr.P.

Denis can you explain it to me I am confused between b and d.

10. b. d= 1/2 (k - 4) : brackets mean k and -4 are both multiplied by 1/2

d = (1/2)*k - (1/2)*4 = k/2 - 2

d. d= 1/2 k - 4 : no brackets, so 4 is not multiplied by 1/2

d = (1/2)*k - 4 = k/2 - 4

Are you attending math classes ?

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