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dedylja [7]
3 years ago
5

What is the check digit (d) for the UPC barcode number

Mathematics
1 answer:
galben [10]3 years ago
8 0

Answer:

c edg 2020

Step-by-step explanation:

Gothcu

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What value of x makes this statement true?<br> 3x=2x+12<br><br> A) 2<br> B) 5<br> C) 6<br> D) 12
vekshin1

Answer:

The value of x = 12, makes the statement 3x=2x+12  true

Option D is correct option.

Step-by-step explanation:

What value of x makes this statement true?

3x=2x+12

We need to solve the equation to find value of x

3x=2x+12

Subtract 2x on both sides

3x-2x=2x+12-2x\\x=12

So, the value of x is: x=12

So, The value of x = 12, makes the statement 3x=2x+12  true

Option D is correct option.

4 0
2 years ago
How many solutions does the equation have, x1 + x2 + x3 = 10 , where x1 , x2, and x3 are non-negative integers?
MAVERICK [17]

Non-negative integers are positive integers or zero.

1. When x_1=0, then there are such possible cases for x_2 and x_3:

  • x_2=0,\ x_3=10;
  • x_2=1,\ x_3=9;
  • x_2=2,\ x_3=8;
  • x_2=3,\ x_3=7;
  • x_2=4,\ x_3=6;
  • x_2=5,\ x_3=5;
  • x_2=6,\ x_3=4;
  • x_2=7,\ x_3=3;
  • x_2=8,\ x_3=2;
  • x_2=9,\ x_3=1;
  • x_2=10,\ x_3=0.

In total 11 solutions for x_1=0.

2. For x_1=1, there are such possible cases for x_2 and x_3:

  • x_2=0,\ x_3=9;
  • x_2=1,\ x_3=8;
  • x_2=2,\ x_3=7;
  • x_2=3,\ x_3=6;
  • x_2=4,\ x_3=5;
  • x_2=5,\ x_3=4;
  • x_2=6,\ x_3=3;
  • x_2=7,\ x_3=2;
  • x_2=8,\ x_3=1;
  • x_2=9,\ x_3=0.

In total 10 solutions for x_1=1.

3. This process gives you

  • for x_1=2 - 9 solutions;
  • for x_1=3 - 8 solutions;
  • for x_1=4 - 7 solutions;
  • for x_1=5 - 6 solutions;
  • for x_1=6 - 5 solutions;
  • for x_1=7 - 4 solutions;
  • for x_1=8 - 3 solutions;
  • for x_1=9 - 2 solutions;
  • for x_1=10 - 1 solution.

4. Add all numbers of solutions:

11+10+9+8+7+6+5+4+3+2+1=66.

Answer: there are 66 possible solutions (with non-negative integer variables)

8 0
3 years ago
Read 2 more answers
What is the distance from M(9,-4) to NC-1, -2)?
Ilia_Sergeevich [38]

Answer:

Exact Form: 2√26

Decimal Form: 10.19803902 …

Step-by-step explanation:

8 0
3 years ago
Determine the following<br>quadratic equations have real<br>roots<br><br>1) 3x² - √2x-√3​
IceJOKER [234]

Step-by-step explanation:

√3 x² - 2x - √3 = 0

√3 x² - 3x + x - √3 = 0

√3 x(x - √3) + 1(x - √3) = 0

(x - √3 ) (√3 x + 1) = 0

x - √3 = 0 , √3 x +1 = 0

x = √3 , x = -1/√3

3 0
3 years ago
You have $3.20 in quarters and dimes. You have four fewer quarters than dimes. What would the associated system of equations loo
Harlamova29_29 [7]
 The equation is 
Dimes is x

x+x-4=3.20


5 0
3 years ago
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