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chubhunter [2.5K]
3 years ago
12

Help please ASAP thanks!

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
7 0
A. 55%
because you have to add 21 and 45 then you divide the answer -66- by how much 2 hours is in minutes. The you get 0.55, so it equals 55% 
Mandarinka [93]3 years ago
4 0
2 hours is 120 minutes.
If you take 21 divided by 120 mutiplied by 100 that gives you 17.5% of stretching
Then you take 45 divided by 120 multiplied by 100 that gives you 37.5% of jogging
100-17.5=82.5
82.5-37.5=45

b) 45%
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3 years ago
Which expression is equivalent to 16 × 3?
never [62]

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4 0
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Someone help i need an answer
soldi70 [24.7K]

Remember that the formula for the perimeter of a rectangle is:

2w + 2l

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  • l is the length of the rectangle

Thus, in this case, you can see that we are adding two of the same monomials and two of another monomial. One monomial is x + 15 and another monomial is x + 5. In this case, these monomials would fulfill the perimeter equation of a rectangle.


Applying this perimeter structure, we can find that this expression represents a perimeter equation of a rectangle with sides x + 15 and x + 5.

8 0
4 years ago
Micheal plays 1/15 of a song in 1/5 of a minute. How many minutes will it take to play the whole song?
Vladimir79 [104]

Answer:

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15(1/5)

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6 0
3 years ago
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Can I get help with this ???
Semmy [17]
Okay so the small triangle has sides that are 3 units, 4 units and 5 units long 
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Hope this helps :)
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