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Paraphin [41]
3 years ago
9

Can someone please help me with problems 3, 4, and 5?

Mathematics
1 answer:
Romashka [77]3 years ago
6 0
3. i'm not entirely sure about this one, because i feel like i'm making it more complicated than it is, but if there are 100 students and 80% of them would know the answer--80% of 100 is 80. therefore, 80 students would pass and 20 would fail.

4. if you're sending someone an e-mail... the only way to check an email is through the web, so they'll get a 100% "yes i use the web" response because they only sent the survey through e-mail

5. very few, if not absolutely none of the students who received As would ask for a grade re-evaluation. most people are satisfied with As and they'd be scared that, if re-evaluated, their grade would drop. they likely wouldn't respond to the dean in the affirmative.
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Answer:

the answer is -5< x

Step-by-step explanation:

you you start by subtracting 7 by both sides leaving you with -20<4x. then then divide both sides by 4 leaving you with -5< x

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3 years ago
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Write a pair of equivalent expressions using distributive property
bulgar [2K]
The distributive property "distributes" a number through all numbers/terms in a set of parentheses by multiplication.


EXAMPLES
Equivalent expressions are the first and last steps. The middle step just shows the work.

5(2 + 3x)= (5*2) + (5*3x)= 7 + 15x

4(2x + 4y)= (4*2x) + (4*4y)= 8x + 16y

10(4x + 5)= (10*4x) + (10*5)= 40x + 50


ANSWER:
Only one pair below is needed for your answer.

5(2 + 3x)= 7 + 15x

4(2x + 4y)= 8x + 16y

10(4x + 5)= 40x + 50


Hope this helps! :)

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