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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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This question is super hard for me, and I really need some help please! The Question is in the attatchtment
ELEN [110]

Answer:

x=40

Step-by-step explanation:

Because every triangle's angles add up to 180 degrees, you know 3x+x+20=180. Since 3x and x are like terms, you can add them to get 4x. 20 and 180 are also like terms. However, to move your 20 to the side of 180, you need to subtract it. So you have 4x=160. To get x by itself, you divide 4x and 160 by 4. 4x/4 is x, and 160/4 is 40. So your answer is x=40.

6 0
3 years ago
someone please answer this but no links because i have a school computer and it blocks the links so please dont send links
Otrada [13]

Answer:

just typed the whole in mathaway.com

Step-by-step explanation:

it's a better app for quadratic equation and you can use it on a school computer

7 0
3 years ago
-2y-12<br> How do I show my work?????
grin007 [14]

Factor - 2y - 12

- 2y - 12

= - 2( y + 6)

answer is - 2( y + 6)

4 0
3 years ago
If y varies directly with x and y = 3 when x =12, then what is the value of y when x =40?
3241004551 [841]
Its c 10 and other fillar so i can answer
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3 years ago
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Correct answer is C) 2.3 units and 7.8 units

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