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postnew [5]
3 years ago
15

Subtract the following using horizontal method i.)2x from-5x ii.)-5a from 18a

Mathematics
2 answers:
Lena [83]3 years ago
6 0

Answer:

\huge{ \boxed{ \text{ i. \:  \ - 7x}}}

\huge{ \boxed{ \text{ii. \:  23a}}}

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☄ Question : Subtract the following using horizontal method :

  • i. 2x from -5x
  • -5a from -18a

✎ Step - by - step Explanation :

  • 2x from -5x

In horizontal method , terms are arranged in same row and put sign for subtraction and remove the brackets and then simplify.

\longrightarrow{ \sf{ - 5x - (2x)}}

\longrightarrow{ \sf{ - 5x - 2x}}

Like terms can be added or subtracted. Only coefficients of like terms can be added or subtracted.

\longrightarrow{  \boxed{\sf{ - 7x}}}

Likewise , Let's do next too:

  • -5a from 18 a

\dashrightarrow{ \sf{  18a - ( - 5a)}}

Remember : \sf{( - ) \times (  - ) = (  + )}

\dashrightarrow{ \sf{ 18a + 5a}}

\dashrightarrow{ \boxed{ \sf{ 23a}}}

And we're done!

Hope I helped!

Have a wonderful time ツ

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Dmitry [639]3 years ago
3 0

Answer:

i)-7x ii)23a

Step-by-step explanation:

i)U well get -5x-2x, after solving, u well get -7x since all is negetive. ii)U well get 18a-(-5a) which u well get 18a+5a whict is equal to 23a

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Step-by-step explanation:

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Aleksandr-060686 [28]

x = 125

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x/5 X 5 = x

and

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I need help ASAP 10 Points!!!
swat32

Purple color figure is similar to the original figure.

<u>Solution:</u>

Property of similar polygon:

<em>Similar polygons have same shape, corresponding angles are congruent and the corresponding sides are in the same ratio.</em>

(1) <u>Compare original figure with green color figure:</u>

Angles of the original figure:

37°, 53° and 90°.

Angles of the green color figure:

67°, 23° and 90°

These two angles of the triangles not congruent angles.

Hence these shapes are not similar.

(2) <u>Compare original figure with yellow color figure:</u>

Angles of the original figure:

37°, 53° and 90°.

Angles of the yellow color figure:

67°, 23° and 90°

These two angles of the triangles are not congruent angles.

Hence these shapes are not similar.

(3) <u>Compare original figure with purple color figure:</u>

Angles of the original figure:

37°, 53° and 90°

Angles of the purple color figure:

37°, 53° and 90°

These two triangles have same shape and congruent angles.

Ratio of the sides:

$\frac{3}{6}=\frac{1}{2} , \ \frac{4}{8}=\frac{1}{2} , \ \frac{5}{10}=\frac{1}{2}

These two triangles have same ratio.

Hence these shapes are similar.

Hence purple color figure is similar to the original figure.

4 0
3 years ago
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