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Alexxandr [17]
3 years ago
6

Of the four expressions presented here, which two are equivalent? Expression I: 19n Expression II: 4n + 9 + n + 5n Expression II

I: 10n + 9 Expression IV: 9n + 9 I and II II and III I and III II and IV
Mathematics
2 answers:
lutik1710 [3]3 years ago
4 0

Answer:

Expression II and Expression III

Step-by-step explanation:

4n + 9 + n + 5n = 10n + 9

add 4n + 5n + n = 10n

add the 9 after that which equals 10n + 9 which is equivalent to Expression III

allsm [11]3 years ago
3 0

Answer:

either C or D but i am leaning towards C

Step-by-step explanation:

i did the process of elimation and any other answer is not correct.

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How do you solve -1x+20 is greater than -7+35
rusak2 [61]

\huge\fbox{Hello~there!}

Let's solve this inequality!

\rm{-x+20>-7+35

What can we do to solve this inequality? Well, first of all, we can add -7 and 35:

\rm{-x+20>28

Now, move 20 to the right, using the opposite operation:

\rm{-x>28-20

Subtract:

\rm{-x>8

Divide both sides by -1 to isolate x:

\rm{x (Answer)

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<em>Additional comment</em>

When we divide both sides of an inequality by a negative number, we flip the inequality sign.

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I hope you find it helpful.

Feel free to ask if you have any questions.

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3 0
3 years ago
Hello <br><br> does anyone need any help, im really good at math and i would love to help someone
natta225 [31]
Yes i need help on a problem, can i message you?
7 0
3 years ago
Read 2 more answers
4+b = -30<br> What is the value of X?<br><br> X= -34<br> X= 7.5 <br> X=120<br> X= -26
Firdavs [7]

Answer:

X= -34

Step-by-step explanation:

6 0
3 years ago
Which properties were used to solve the following problem?
Stels [109]

Step-by-step explanation:

25(2x) + 25(3y)

25 · (2 · x) + 25 · (3 · y)

(25 · 2) · x + (25 · 3) · y                <em>Associative property </em><em>(a · b) · c = a · (b · c)</em>

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<em>50x + 75y</em>

5 0
3 years ago
2 2/5 in kilometers in 3 3/4 minutes unit rate
Mars2501 [29]

Answer:

Step-by-step explanation:

d = r * t     Divide both sides by t

r = d / t

d = distance = 2.25 km

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r = 3/5 km / minute

If the units are different than those given, please state them underneath my answer. I'll get to it as soon as I see your comment.

5 0
3 years ago
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