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frosja888 [35]
3 years ago
8

Which properties justify the steps taken to solve the system?

Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0

Answer:

Just took it!

Step-by-step explanation:

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How do I put y=90-15x in standard form
lisabon 2012 [21]

The standard form: Ax + By = C


y = 90 - 15x     <em>add 15x to both sides</em>

<h3>15x + y = 90</h3>
8 0
3 years ago
In the system -12c+3d=6 and -3c +6d=-9, which expression could you use for substitution
inessss [21]
You can not use either of them because neither of them have a variable= to the eqaution
ex.) y= 3x+25
3 0
3 years ago
Determine the time needed to deliver 72 papers at a rate of 9 papers in 18 minuets
monitta
Hey there,

Question : <span>Determine the time needed to deliver 72 papers at a rate of 9 papers in 18 minuets

Answer : 
9 papers = 18 min
1 paper = 18 / 9
             = 2 min
72 papers = 2 x 72
                 = 144 mins

Hope this helps :))

<em>~Top♥</em>
</span>
3 0
3 years ago
Helen is a secretary and earns $10.82 per hour she worked 38 hours last week , what is her straight-time pay?
NikAS [45]

Answer:

Answer is : $411.16

Step-by-step explanation:

How much she earns per hour which is $10.82 times by the total hours she have worked 38h then you get the answer which is $411.16

$10.82 X 38 hours = $411.16 total

3 0
2 years ago
Find the median of each set of data.
Tatiana [17]

Answer:

Step-by-step explanation:

<em>Set 1:</em>  12, 8, 6, 4, 10,1

Now find mean of 6 and 4:

(6+4)/2=10/2:

5 << answer of set 1

<em>Set 2: </em>6,3,5, 11, 2, 9,5,0

(11+2)/2=6.5

<em>Set 3: </em>30, 16, 49, 25

(16+49)=65/2

32.5

Sorry I was late to answer your question, but hope it helps!

Feel free to comment down below if you have any questions!

3 0
4 years ago
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