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3 years ago

9

brian is building a wood frame around a window in his house. if the window is 4 feet by 5 feet, how much wood does he need for t

he frame?

1 answer:

kirill115 [55]3 years ago

6 0

18 eighteen feet long

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andrezito [222]

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3 years ago

Which expressions are equivalent to 10a - 25 + 5b

sergey [27]

Answer:

<h2>(2a − 5 + b) · 5</h2><h2>10×(a − 2.5 + 0.5b)</h2><h2>(−2a + 5 − b) ⋅ (−5)</h2>

Step-by-step explanation:

$10a-25+5b\\\\-2(-5a-25+5b)=(-2)(-5a)+(-2)(-25)+(-2)(5b)\\=10a+50-10b\qquad NOT\\\\(2a-5+b)(5)=(2a)(5)+(-5)(5)+(b)(5)=10a-25+5b\qquad YES\\\\10(a-2.5+0.5b)=(10)(a)+(10)(-2.5)+(10)(0.5b)\\=10a-25+5b\qquad YES\\\\(-2a+5-b)(-5)=(-2a)(-5)+(5)(-5)+(-b)(-5)\\=10a-25+5b\qquad YES\\\\-10(-a-2.5-0.5b)=(-10)(-a)+(-10)(-2.5)+(-10)(-0.5b)\\=10a+25+5b\qquad NOT$

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Solve it guys !????<br>q.no 1 .b

saw5 [17]

Answer:

C

Step-by-step explanation:

the answer is C sense that makes the most sense with the problem

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