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3 years ago

Which sentence represents the inequality -2b + 7 > 27.5? Help PLEASE!

Mathematics

2 answers:

AVprozaik [17]3 years ago

7 0

-2b + 7 > 27.5
- 2b > 27.5 - 7
- 2b > 20.5
b < - 10.25

wel3 years ago

3 0

Answer:

The sentence that represents the inequality "-2b + 7 > 27.5" is "negative two times a number plus seven is greater than twenty-seven and five tenths"

Step-by-step explanation:

The goal of this exercise is to translate the inequality (in math language) to a colloquial statement.

Let's do the translation part by part.

The expression "2b" can be translated to "two times a number".

Then, the expression "-2b" can be translated to "negative two times a number".

The expression "-2b + 7", as we are adding 7 to the previous expression, can be translated to "negative two times a number plus 7".

The expression "-2b + 7 > ...", means that the expression at the left of the inequality is greater than the one at the right. Then, it can be translated as "negative two times a number plus 7 is greater than ...".

Finally, the expression "-2b + 7 > 27.5", can be translated as "negative two times a number plus seven is greater than twenty-seven and five tenths"

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Answer:

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Step-by-step explanation:

We have given $a_{14}=4.1$

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Using the formula:

$s_n=\frac{n}{2}[2a+(n-1)d$

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