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Aleksandr-060686 [28]
3 years ago
15

Please show all steps thank you

Mathematics
2 answers:
andriy [413]3 years ago
7 0
X=23

3x+18+93=180
3x+111=180
-111 -111
3x=69
3x/3=69/3
X=23
madreJ [45]3 years ago
6 0
I know I'm definitely wrong: 540. it looks like a right angle. 
I did on the calculator:
18 * 90 = 1620
1620 / 3 = 540
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4 students is ____% of 20 students
Rudiy27

Answer:

20%

Step-by-step explanation:

20 * 20% = 4

or you can change it to a decimal

20 * .2 = 4

hope this helped! :)

3 0
2 years ago
HELP PLS FOR 10 POINTS AND BRAINLIEST TO CORRECT ANSWER The cost, C, to ride in a taxi can be calculated using the function show
max2010maxim [7]

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7 0
3 years ago
Provide an appropriate response.
oksian1 [2.3K]
You don't even have to look up the definition of 'standard deviation'.  You only
have to remember that 'smaller standard deviation' means 'less spread-out'.

First, let's find the mean (average).  It's not supposed to change:

1/7th of (65 + 71 + 77 + 80 + 82 + 90 + 96) = 561/7 = <u>80 and 1/7</u> .

Now, just pick 7 scores that total 561 and are all bunched up.

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Let's say <u>77, 78, 79, 80, 81, 82, and 84</u> .
8 0
3 years ago
Jeremy buy a new computer with 14 optional features some of the features cost $28.50 and some cost $110.99 he if he spent a tota
makkiz [27]

28.50x + 110.99(14-x)=811.45

distribute

28.50 x + 1553.86-110.99x =811.45

combine like terms

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subtract 1553.86 from each side

-82.49x =-742.41

divide by -82.49

x=9

He bought 9 of the 28.50 features and 5 of the 110.99 features

4 0
3 years ago
If sally wants to have 400 square yards of carpet installed which company would be cheaper?
Nina [5.8K]

Answer: country carpets are cheaper

Step-by-step explanation:

6 0
2 years ago
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