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Rufina [12.5K]
3 years ago
15

Match each expression to its simplified form 3(4x + 5)

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
6 0

Answer:

Step-by-step explanation:

3(4x+5)

12x + 15

Multiply the 3 by numbers inside parentheses.

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Can somebody help me with this
LekaFEV [45]

Probability = option(s) that we want / total number of possibilities

Options that we want = cash or credit card  = 50 + 4 = 54

Total number of possibilities = cash, debit card, credit card = 50 + 2 + 4 = 56

54 / 56 = 0.96

Answer: 0.96

Hope this helps!

5 0
3 years ago
The two lines graphed below are parallel. How many solutions are there to the system of equations?
Yuki888 [10]

Answer:

C. Zero

Step-by-step explanation:

The solution of the system of equations would be the point where they intersect, but since these lines are parallel, they will never intersect, so therefore there are zero solutions.

3 0
3 years ago
PLEASE HELP, please write it out in the system of equations (step by step)
gizmo_the_mogwai [7]

Answer:

{x,y}={-2,3}

Step-by-step explanation:

[1]    2x + y = -1

  [2]    x - 2y = -8  <------- given linear equations

Graphic Representation of the Equations : ----> given in attatchment

y + 2x = -1        -2y + x = -8  < ----- point where they connect is shown in graph

Solve by Substitution :

// Solve equation [2] for the variable  x

 [2]    x = 2y - 8

// Plug this in for variable  x  in equation [1]

  [1]    2•(2y-8) + y = -1

  [1]    5y = 15

// Solve equation [1] for the variable  y

  [1]    5y = 15

  [1]    y = 3

// By now we know this much :

   x = 2y-8

   y = 3

// Use the  y  value to solve for  x

   x = 2(3)-8 = -2

Solution :

{x,y} = {-2,3}

7 0
3 years ago
Read 2 more answers
The circle below is centered at the point (1,2) and has a radius of length 3 .what is its equation?
Leni [432]

Answer:

Step-by-step explanation:

The general equation for a circle of radius r with center at (h, k) is

(x - h)² + (y - k)² = r²

Here, this equation becomes:

(x - 1)² + (y - 2)² = 3²

8 0
3 years ago
Solve for x:<br><br> 5/2 = x/(1/7)
Dmitry_Shevchenko [17]
X=5/14 this it in sure
5 0
3 years ago
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