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3 years ago

This one please help out

Mathematics

2 answers:

Luda [366]3 years ago

6 0

Answer:

15. there are 11 cubes

16. there are 18 cubes

17. there are 6 cubes

18. the pencil case

19. the stapler

20. The Pencil Case is heavier than the wallet

21. The stapler is lighter than the wallet

Step-by-step explanation:

Okay so looking at the unit cubes you must count how much there are and see how much unit cubes the weight is equivalent to

15. there are 11 cubes

16. there are 18 cubes

17. there are 6 cubes

18. the pencil case

19. the stapler

20. The Pencil Case is heavier than the wallet

21. The stapler is lighter than the wallet

your work is correct!! Good job!!

Hope this helps!!

-Ketifa

miskamm [114]3 years ago

3 0

Sorry i don’t know the answer.

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3 years ago

Which lengths make sense for possible values of b

Lerok [7]

The first condition is for the perimeter of the equation so:

$P=2a+b=15.7$

Now the secon condition is that the sum of two sides should be:

$\begin{gathered} a+b>b \\ b+b>a \end{gathered}$

so the negative option and 0 don't make sence dor a distance, then we try with the value of b=0.5

So in the first equation will be:

$\begin{gathered} 2a+0.5=15.7 \\ 2a=15.2 \\ a=7.6 \end{gathered}$

So the condition:

$\begin{gathered} b+b>a \\ 0.5+0.5>7.6 \end{gathered}$

this is false, so the solution is

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2 years ago