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3 years ago

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:

Given information

x = 6

Given expression

4 (2x - 1) + 3

Substitute values into the expression

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

Simplify by multiplication

=4 (12 - 1) + 3

Simplify by subtraction

=4 (11) + 3

Simplify by multiplication

=44 + 3

Simplify by addition

= $\boxed{47}$

Hope this helps!! :)

Please let me know if you have any questions

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What is 1/2 X (6 X 4)+3 + 2 Please show your work

exis [7]

Answer:

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

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3 years ago

Please answer these i need this

Len [333]

Answer:

1. no

2. 8

Step-by-step explanation:

1. 20 does not equal 4/5

2. 6x=48 divide 6 on both sides

x=8

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3 years ago

Read 2 more answers

Multiply and give the answer in scientific notation:

kakasveta [241]

Step-by-step explanation:

given

$(1.5 \times {10}^{4} )(8 \times {10}^{8} )$

in order to make multiplication easier we need to change the 1.5 into a whole number form.

thus

$(15 \times {10}^{ - 1} \times {10}^{4} )(8 \times {10}^{8} )$

$= (15 \times {10}^{4 - 1} )(8 \times {10}^{8} )$

First law of indices applied there

=(15×10^3)(8×10^8)

=(15×8)(10^3×10^8)

=120×10^3+8 ( first law of indices, which states that , numbers of the same base multiplying each other, take one of the base and add the exponent. and clearly both 15 and 8 are in base 10

=120×10^11

=1.20×10^2 ×10^11

=1.20×10^11+2

=1.20×10^13

so the answer is alt B

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3 years ago

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kari74 [83]

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3 years ago

4(2x - 1) + 3 When x=6Evaluate​

4(2x - 1) + 3 When x=6Evaluate