3 years ago

20 earth pounds on the moon

Mathematics

1 answer:

tatiyna3 years ago

4 0

20 earth pounds on the moon would equate to 3.31 pounds.

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Write the expression without using exponents (-2y)^4

JulsSmile [24]

Answer:

16yyyy

Step-by-step explanation:

Getting rid of exponents:

(-2y)^4 =
(-2)^4*y^4 =
16yyyy

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3 years ago

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8 is 16% of what?<br> Complete the sentence

zalisa [80]

Answer:

Step-by-step explanation:

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2 years ago

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

sergey [27]

Answer:

Step-by-step explanation:

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