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inessss [21]
3 years ago
14

Which expressions are equivalent to j+j + 2k

Mathematics
2 answers:
AlexFokin [52]3 years ago
5 0

Answer:

One of the equivalent expressions is 2(j+k).

Step-by-step explanation:

In the expression

j+j+2k

there are 2 j's ;therefore, the expression can be rewritten as

2j+2k,

and using the reverse distribute property which says

ax+ay=a(x+y),

we rewrite our expression as

2j+2k = \boxed{2(j+k).}

Leokris [45]3 years ago
4 0

The correct answer is:

None of the above

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We're dividing fractions, so we will flip the one in the denominator upside down and we will multiply it with the numerator.

\frac { \frac { 5 }{ 2 }  }{ \frac { 16 }{ 3 }  } \quad =\quad \frac { 5 }{ 2 } \cdot \frac { 3 }{ 16 } =\frac { 5\cdot 3 }{ 2\cdot 16 } =\frac { 15 }{ 32 }

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Divide both sides by 15.

\frac { 256 }{ 15 } =\frac { 15x }{ 15 } \\ \\ \frac { 256 }{ 15 } =x

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