Paulina works out with a 2.5-kilogram mass. what is the mass of 2.5-kilogram mass in grams?

Answers

Answer 1
Answer: Kilo means thousand, so if you have 1 kilogram that means you have 1000 grams.


Paulina has a 2.5 kilogram mass, 2 kilograms is 2000 grams.

0.5 means half and to get a half out of anything you have to divide it by 2.
1000 divide by 2 is 500.

Your answer is 2500.

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Is 26 a perfect square?

Answers

No, it's not.

No number times itself can equal 26. 

A perfect square example is 36, where 6 and 6 multiplied by each other can equal, you know, 36.

hallie has 10 times as many pages to read for her homework assignment as janet, altogether , they have to read 264 pages. how many pages does each girl have to read

Answers

they read all together you divide then the quotient you divide it by 10 that's how u get ur answer13.2
Let j be the number of pages Janet has to read.
so Hallie has 10j pages to read.
Altogether, they must read 10j + j pages, which is 11j. So this means that 11j must be equal to 264.
If you divide both bits by 11, you get j = (264)/(11)  = 24.
So, Janet has to read j pages, which is 24, and Hallie has to read 10j pages, which is 240.

What is the surface area of this rectangular prism?A.
81 m2

B.
99 m2

C.
198 m2

D.
162 m2 The lengths are 6m 3m 9m

Answers

C) 198m^2

(6*3*2) + (6*9*2) + (3*9*2) = 198 and that accounts for all the sides

How many times as much as 0.2 is 0.02?

Answers

When you multiply by 10 you move the decimal point 1 place to the left.

(0.2 would become 2.0, and 0.02 would become 0.2.)

0.2 is 10 times as much as 0.02.

NO! 0.2 is the same as 0.20 since you can add trailing zeroes to a number after a decimal) 0.20 is not the same as 0.02 I think

How would you solve (4k+5)(k+1)=0?

Answers

(4k+5)(k+1)=0\iff4k+5=0\ or\ k+1=0\n\n4k=-5\ or\ k=-1\n\n\boxed{k=-(5)/(4)\ or\ k=-1}
(4k + 5) (k + 1) = 0

Before you rush off and start trying to do complicated things with that equation,
put your pencil down, fold your hands in your lap, and sit and look at it for a while.
Keep looking at it until a little voice yells out "Hey !  That's a true statement if
either
(4k + 5) is zero  or  (k+1) is zero.  THEN go to work on it.

(4k + 5 = 0)
4k = -5
k = -5/4

(k + 1 = 0)
k = -1

And there are the two solutions to that equation.

14 boys and 21 girls will be equally divided into groups find the greatest number of groups that can be created if no one is left out

Answers

The greatest number of groups that can be created if no one is left out would be 7.