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zalisa [80]
3 years ago
5

How can you know if this equation is true?

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0
Notice how 1/2 and 3/8 are positive numbers. We add two positive numbers meaning that the result should be larger. However 2/5 = 0.4 is not larger than 1/2 = 0.5

So something went wrong with the adding. It turns out that the error is when the person added the numbers in the denominators (2 and 8 to get 10). This is not allowed. The denominators must be the same and stay the same in order for the fractions to be added.

For example: 1/7 + 2/7 = (1+2)/7 = 3/7
The 7s in the denominator do not change

Therefore the answer is choice B) Not true because 2/5 < 1/2
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3 years ago
What is the solution set of this inequality? 3|p + 4| + 5 &lt; 8 (–5, –3) (–3, 0) (0, –5) (3, 5)
Viefleur [7K]

Given:

The inequality is

3|p+4|+5

To find:

The solution set for the given inequality.

Solution:

We have,

3|p+4|+5

3|p+4|

3|p+4|

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|p+4|

It can be written as

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-1-4

-5

The solution set of the given inequality is (-5,-3).

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Step-by-step explanation:

Hi there!

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[(12*18)-(7*3)]/200

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Step-by-step explanation:

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