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insens350 [35]
2 years ago
7

What is 7.4 as a whole number?

Mathematics
2 answers:
Umnica [9.8K]2 years ago
6 0
No
Wholes numbers starts from zero to infinity and also they do not include fractions.As the name suggests they are ‘whole ‘ eg. 1 2 3 4 ...
erastovalidia [21]2 years ago
4 0

Answer:

it’s between 7 and 8

Step-by-step explanation:

if that doesn’t help sorry I tried

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Hi,

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It would take Delia 3 hours longer to re tile their bathroom by herself than it would for kari to retile on her own. If they wor
max2010maxim [7]

Answer:

6hours

Step-by-step explanation:

From the given information:

Suppose it took Karl x hours to retile her bathroom,

Then it will take Della 3 hours longer i.e (3+x) hours

If Della and Karl work together or will take them 2 hours

The objective is to determine how long it will take Delia to retile the bathroom alone?

∴

\dfrac{1}{x}+\dfrac{1}{3+x}= \dfrac{1}{2}

\dfrac{x+3+x}{x(3+x)}= \dfrac{1}{2}

\dfrac{2x+3}{3x+x^2}= \dfrac{1}{2}

By cross multiplying, we have:

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4x + 6 = 3x + x²

3x + x² - 4x - 6

x² - x - 6 = 0

Using quadratic equation

x² -3x +2x - 6 = 0

x(x - 3) + 2(x - 3) = 0

(x +2) (x - 3) = 0

x + 2 = 0 or x - 3 = 0

x = -2 or x = 3

Since we are concerned about the positive integer,

Then, Karl = x = 3 hours while Della which is (3+x) = 3+3 = 6hours

6 0
2 years ago
A test for marijuana usage was tried on 200200 subjects who did not use marijuana. the test result was wrong 77 times.
Alexxandr [17]
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FrozenT [24]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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