Which expressions are equivalent to 10a-25+5b - - - answer now and i will put u give u crown

Answer with explanation:

Two or more expressions are said to be equivalent expression, if we express that expression in any other way,and by substituting the value of variables, we get the same result as in the original.

Original expression = 10 a -2 5 + 5 b

Equivalent Expression = 5 × 2 a - 5 × 5 + 5 × b

                                 = 5× [2 a - 5 + b]

Addition of number follow associative law,that is,→ a +(b+c)=(a+b)+c=(a+c)+b

So,Equivalent Expression to,10 a -2 5 + 5 b are

→ 5× [2 a - 5 + b]

or,→ 5 × [ 2 a + b -5 ]

or,→ 5 × [-5 +b + 2 a]

or,→ 5 × [ b - 5 + 2 a]

or,→ 5× [2 a - 5 ] + 5 b

or, → 5× [b-5]+10 a

or, → 5× [2 a + b]- 2 5

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

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