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ladessa [460]
3 years ago
6

I need the answer so please help it is worth 88 points

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

24

Step-by-step explanation:

If she did all 3of them today then you subtract a day from each one then it would look like this

5+4+15=24

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A side of a square is 10 m longer than the side of an equilateral triangle the perimeter of the square is three times the perime
Slav-nsk [51]

Answer:

\large \boxed{\text{8 m}}

Step-by-step explanation:

     Let side of triangle = x

And side of rectangle = y

  Perimeter of triangle = 3x

Perimeter of rectangle = 4y

We have two conditions:

\begin{array}{lrcl}(1) & y & = & x + 10\\(2) &4y & = & 3\times 3x\\& 4y & = & 9x\\& 4(x + 10) & = & 9x\\& 4x + 40 & = & 9x\\& 40 & = & 5x\\& x& = &\mathbf{8}\\\end{array}\\\text{Each side of the triangle is $\large \boxed{\textbf{8 m}}$ long.}

3 0
3 years ago
A bullet with a mass of 0.005 kg is shot at a speed of 40
marin [14]

Answer:

combined velocity of the system = 0.033 m/s.

Step-by-step explanation:

taking the bullet and block as single system since there is no external force involved momentum is conserved .

initial momentum of the bullet = mv

where m is the mass of bullet and v is velocity of bullet.

and initial momentum of block = 0 since its velocity is 0.

therefore initial momentum of the system = mv

                                                                      = 0.005×40

                                                                      = 0.2

when the bullet stick of together with the block let the combined velocity of the system be V

therefore applying conservation of momentum

mv = (M+m)V

0.2=(6+0.005)V

therefore V = 0.033 m/s

7 0
3 years ago
Leila bought 3 bananas, which weighed a total of 3/4 of a pound. If each banana weighed the same amount, what is the weight of e
gavmur [86]
3 bananas = 3/4 of a pound, then 3/4 divided by 3 = 1 banana. So each banana would weigh 1/4 of a pound
7 0
3 years ago
Read 2 more answers
PLEASE HELP! :)
Katarina [22]
Well lets see. You have a total of 52 marbles. So all you would have to do would be to find the percent of 52 out of 60. This sounds confusing and I may not be completely right but I hope you give it a shot!
3 0
4 years ago
How to make 69% as a fraction in simplest form?
IceJOKER [234]
69% can be written as
69/100
That cannot be reduced any further since 69 and 100 do not have any common factors other than 1
4 0
4 years ago
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