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aivan3 [116]
3 years ago
6

Alex went for a walk. D(t) models the distance Alex walked in (kilometers) after t hours what does D(0.5)<D(1)-D(0.5) mean?​

Mathematics
1 answer:
Ierofanga [76]3 years ago
6 0

Answer:

D d d d d d d d d

Step-by-step explanation:

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Solve -2x+3=-3x+2 and is it no solution <br>One solution or infinitely many solutions. ​
Alex73 [517]

Answer is =-1

implifying

-2x + 3 = -3x + 2

Reorder the terms:

3 + -2x = -3x + 2

Reorder the terms:

3 + -2x = 2 + -3x

Solving

3 + -2x = 2 + -3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3x' to each side of the equation.

3 + -2x + 3x = 2 + -3x + 3x

Combine like terms: -2x + 3x = 1x

3 + 1x = 2 + -3x + 3x

Combine like terms: -3x + 3x = 0

3 + 1x = 2 + 0

3 + 1x = 2

Add '-3' to each side of the equation.

3 + -3 + 1x = 2 + -3

Combine like terms: 3 + -3 = 0

0 + 1x = 2 + -3

1x = 2 + -3

Combine like terms: 2 + -3 = -1

1x = -1

Divide each side by '1'.

x = -1

Simplifying

x = -1

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3 years ago
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Which algebraic expression represents “the difference of fifty-four and seven times a number”? 54 minus 7 n StartFraction 54 Ove
VMariaS [17]

Answer: 54-7n

Step-by-step explanation:

When we talk about mathematical language, the <u>difference </u>between two numbers, quantities or terms is the <u>substraction operation.</u>

For example, the <u>difference</u> between a and b is:

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On the other hand, if we read a numer c <u>times</u> a number n, this means both numbers are multiplied.

For example:

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So, according to the explained above, “the difference of fifty-four and seven times a number n” is:

54-7n

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Margarita [4]
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Idk how to do this one
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