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tiny-mole [99]
3 years ago
8

Expand and simplify (4x+1)(x+3)

Mathematics
2 answers:
Allisa [31]3 years ago
8 0
<span><span>(<span><span>4x</span>+1</span>)</span><span>(<span>x+3</span>)</span></span><span>
=<span><span>(<span><span>4x</span>+1</span>)</span><span>(<span>x+3</span>)</span></span></span><span>=<span><span><span><span><span>(<span>4x</span>)</span><span>(x)</span></span>+<span><span>(<span>4x</span>)</span><span>(3)</span></span></span>+<span><span>(1)</span><span>(x)</span></span></span>+<span><span>(1)</span><span>(3)</span></span></span></span><span>=<span><span><span><span>4<span>x2</span></span>+<span>12x</span></span>+x</span>+3</span></span><span>=<span><span><span>4<span>x2</span></span>+<span>13x</span></span>+<span>3</span></span></span>
kari74 [83]3 years ago
7 0
Answer is 4x^2+12x+1x+3 
  combine like term it will be
      4x^2+13x+3
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3 years ago
Haley solving this problem by combining like terms 3x +5x=10
GaryK [48]

Answer:

x = 5/4

Step-by-step explanation:

By combining like terms, you get 8x = 10.

Divide the 8 on both sides of the equation.

x = 10/8

This, however, can be simplified by dividing by 2. This ultimately gives us 5/4.

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3 years ago
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19. An alligator was 38 inches long last year. This year it is 10% larger. How big is
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3 years ago
A music store sold a total of 27 used trumpets and clarinets in one month. Trumpets cost $149 and clarinets cost $99. If total s
vodomira [7]
Answer: 16

Solution:

1) Use letters to identify the variables:

Number of trumpets: t
Number of clarinets: c

2) Translate each statement into algebraic (mathematical) language.

2.1) Sold a total of 27 used trumpets and clarinets

=> t + c = 27

2.2) Trumpets cost $149 and clarinets cost $99

Total cost of the trumpets: 149t
Total cost of clarinets: 99c

Total cost = 149t + 99c

2.3) Total sales were $3223

=> 149t + 99c = 3223.

3) State the system of equations:

Equation (1) t + c = 27
Equation (2) 149t + 99c = 3223

4) Solve the system of equations:

4.1) Multiply equation 1 by 149:

=> 149t + 149c = 4023

4.2) Subtract the equation (2) from the equation obtained in 4.1

=> 149c - 99c = 4023 - 3223

=> 50c = 800

=> c = 800 / 50 = 16

5) Verify the solution:

From equation (1) t = 27 - 16 = 11

Total cost = 149*11 + 99*16 = 3223

Now you have a verified answer: they sold 16 clarinets
7 0
3 years ago
8 + z = 19. step equations
steposvetlana [31]

Answer:

11

Step-by-step explanation:

First subtract

19-8= Z

So solution would be

Z=11

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3 years ago
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