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olya-2409 [2.1K]
3 years ago
8

4(2x - 1) + 3 When x=6Evaluate​

Mathematics
2 answers:
Otrada [13]3 years ago
6 0

Answer:

4(2x - 1) + 3  = 8x - 4 + 3 \\  = 8(6) - 4 + 3 \\  = 48 - 4 + 3 \\  = 47

I hope I helped you^_^

UkoKoshka [18]3 years ago
4 0

Answer: 47

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

<u>Given information</u>

x = 6

<u>Given expression</u>

4 (2x - 1) + 3

<u>Substitute values into the expression</u>

=4 [2 (6) - 1] + 3

<u>Simplify by multiplication</u>

=4 (12 - 1) + 3

<u>Simplify by subtraction</u>

=4 (11) + 3

<u>Simplify by multiplication</u>

=44 + 3

<u>Simplify by addition</u>

=\boxed{47}

Hope this helps!! :)

Please let me know if you have any questions

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The math club made a total of $1155 from selling 210 T-shirts. How much did they sell each T-shirt for?
worty [1.4K]

Answer:

$5.50

Step-by-step explanation:

We need to divide the total amount earned by the number of t-shirts

\frac{1155}{210} = $5.5/shirt

4 0
3 years ago
HELPPPPPPPPP PLEASE!!! :(
erastovalidia [21]

Answer:

x = 25

Step-by-step explanation:

Given:

  • ∠A = ∠B    (Vertically opposite angles)
  • ∠A = (7x - 8)°
  • ∠B = (6x + 17)°

Since ∠A is equivalent to ∠B...

\implies (7x - 8)= (6x + 17)

Open the parenthesis:

\implies 7x - 8= 6x + 17

Add 8 both sides:

\implies 7x - 8 + 8= 6x + 17 + 8

Simplify both sides:

\implies 7x = 6x + 25

Subtract 6x both sides:

\implies 7x - 6x = 6x - 6x + 25

Simplify both sides:

\implies x = 25

7 0
2 years ago
Read 2 more answers
Need answers for 70-75
adoni [48]

Answer:

70. 0

71. -54

72. 12

73. 86

74. 59

Step-by-step explanation:

To evaluate an expression, substitute specific values for the variables and simplify using Order of Operations.

70. c-3d becomes

(1)-3(\frac{1}{3}) = 1-(\frac{3}{3}) = 1-1 = 0

71. x+x^3-4x^4 becomes

2+2^3-4(2)^4 = 2+8-4(16) = 2+8-64=10-64=-54

72. 5a+3a^2 becomes

5(-3)+3(-3)^2 = -15 +3(9) = -15 + 27 = 12

73. F=\frac{9}{5}C+32 becomes

F=\frac{9}{5}(30)+32=\frac{270}{5}+32 = 54+32 = 86

74.  F=\frac{9}{5}C+32 becomes

F=\frac{9}{5}(15)+32=\frac{135}{5}+32 = 27+32 = 59

8 0
3 years ago
A student is driving a car at 60.0 miles/hour. what is its speed in m/s
hodyreva [135]
60 miles per hour.
So there are 3600 seconds in 1 hour.
60/3600

5 0
3 years ago
Solve the linear equation. 8x+32=2(25x−15)−11x8x+32=2(25x−15)−11x
Bogdan [553]
It seems like you put the same equation up there twice, but no worries! :)

8x + 32 = 2(25x - 15) - 11x

Simplify.

8x + 32 = 50x - 30 - 11x

Add like terms.

8x + 32 = (50x - 11x) - 30

Simplify.

8x + 32 = 39x - 30

Now we must subtract 32 from both sides.

8x = 39x - 30 - 32

Then, subtract 39x from both sides.

8x - 39x = -30 - 32

Simplify.

-31x = -62

Finally, divide both sides by -31.

-31x ÷ -31 = -62 ÷ -31

Simplify.

x = 2

~Hope I helped!~

8 0
3 years ago
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