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lord [1]
3 years ago
10

The sum of 7 times a number and 3 equals 8 variable is w

Mathematics
2 answers:
Pepsi [2]3 years ago
7 0
Answer:
38w
Step by step answer:




stellarik [79]3 years ago
3 0

Answer:

21w

Step-by-step explanation:

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4 years ago
If I cut a piece that was 5 centimeters wide and had an area of 20 centimeters. How long was the piece?
Soloha48 [4]
Area= Length x width
So....
Length= Area divided by width.
Plug in equation
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6 0
3 years ago
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What is the volume, in cubic cm, of a rectangular prism with a height of 10cm, a width of 20cm, and a length of 11cm??
Alex787 [66]

here's the solution,

=》volume = l × b × h

where,

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so,

=》

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7 0
3 years ago
What are the determinants for solving this linear system?<br> 5x + 3y = 17<br> −8x − 3y = 9
Ksivusya [100]
For this case we have the following system of equations:
 5x + 3y = 17
 -8x - 3y = 9
 We can rewrite the system like:
 Ax = b
 Where,
 A = [5   3; -8   -3]
 b = [17; 9]
 x = [x; y]
 The determinant of matrix A is given by:
 lAl = ((5) * (- 3)) - ((3) * (- 8))
 lAl = (-15) - (-24)
 lAl = -15 + 24
 lAl = 9
 Answer:
 
The determinant for solving this linear system is:
 
lAl = 9
3 0
3 years ago
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alina1380 [7]
4 is the correct answer or x=4 ✌️
4 0
3 years ago
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