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Svetlanka [38]
2 years ago
14

(-13xy+2y)+(2x-5xy-15y)

Mathematics
2 answers:
Thepotemich [5.8K]2 years ago
8 0

Answer:

2x -18xy -13y

Step-by-step explanation:

(-13xy + 2y) + (2x - 5xy -15y)

-13xy + 2y + 2x -5xy - 15y

Collecting like term..

2x -13xy - 5xy - 15y + 2y

= 2x -18xy -13y

Arturiano [62]2 years ago
3 0

Answer:-18xy+2x-13y

Step-by-step explanation: combine like terms

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Pre-Calc :
nikitadnepr [17]
The answer is 
x=2t and t=x/2, but we have <span>y = 3t -1
so </span><span>y = 3(x/2) -1
so y = 3x/2  - 1</span>
5 0
3 years ago
50 points and brainly
Andre45 [30]

Answer:

Part A:

c = .86*p

c =1.72 for 2 lbs

Part B:

c =.81p

Step-by-step explanation:

Part A:

Total cost = cost per pound * number of pounds

c = .86*p

Let p = 2

c = .86*2

c =1.72

Part B:

Total cost = cost per pound * number of pounds

c = .(.86-.05)*p

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5 0
3 years ago
The decimal number 0.2 5 is an example of a terminating decimal.<br><br> true false PLEASE ANSWER
frozen [14]

Answer:

true

Step-by-step explanation:

4 0
3 years ago
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Giving out Brainlist! Diego is building a kitchen table and a coffee table. The legs of a kitchen table must be twice the height
Ulleksa [173]

Diego is building a kitchen table and a coffee table. The legs of a kitchen table must be twice the height of a coffee table and there are 4 legs on each table. He writes the expression 4(2x) + 4(x) to model his building plans. What does 2x represent?

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8 0
3 years ago
What is the arithmetic mean of the following numbers?<br> 3,5,6,7,9,6,8
9966 [12]

Answer:

6 3/7

Step-by-step explanation:

Remember, the mean is the average of the number

Meaning that you have to add up all the numbers then divide them by the amount of numbers there are.

3, 5, 6, 7, 9, 6, 8

(3 + 5 + 6 + 7 + 9 + 6 + 8) / 7

44 / 7

6 3/7

8 0
2 years ago
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