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Elodia [21]
3 years ago
5

Translate and solve: 639 is what percent of 142?

Mathematics
2 answers:
n200080 [17]3 years ago
5 0

Answer:

450

Step-by-step explanation:

639/142= 4.5 times 100

Andre45 [30]3 years ago
4 0

Answer:

450

Step-by-step explanation:

639 is what percent of 142? = 450.

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-3/7 + -3/4 by today Plus points
Roman55 [17]

Answer:

-33/28

Step-by-step explanation:

-12/28 + -21/28

= -33/28

you can't simplify it so its -33/28

6 0
2 years ago
Read 2 more answers
On top of a hill, a rocket is launched from a distance 80 feet above a lake. The rocket will fall into the lake after its engine
Free_Kalibri [48]
The maximum height is 144 feet.

The maximum height is the y-coordinate of the vertex.  To find the vertex, we first use x = -b/2a.  For our information, that is x=-64/2(-16) = -64/-32 = 2.

Now we substitute this into the equation:
y = -16(2²) + 64(2) + 80 = -64 + 128 + 80 = 144
3 0
2 years ago
A store is having a 20%-off sale on all merchandise.
lyudmila [28]
This is easy . There is a 20 percent discount which means now it’s only (100-20%) discount.
This is 80% discount.
Money saved is equal to 100-80%
=20%
And that 20% is equal to 13$ as per the passage.
So now we need to calculate 1 percent of the item without discount .
This is equal to 13/20
This is equal to .65
Now to find the original price you will need to multiply .65 to 100 this is equal to 65$.
5 0
2 years ago
Can someone help me please!!
Kisachek [45]

9514 1404 393

Answer:

  AE = CE = 23; BE = DE = 20

Step-by-step explanation:

Put the values of the variables in their place and do the arithmetic.

  AE = 2u+5 = 2(9) +5 = 23

  BE = 6v-1 = 6(3.5) -1 = 20

  CE = 3u-4 = 3(9) -4 = 23

  DE = 8v-8 = 8(3.5) -8 = 20

The diagonals cross at their midpoints, so the quadrilateral is a parallelogram.

6 0
2 years ago
How would you solve that problem
antiseptic1488 [7]
Since you that that line is 180 degrees you can simply do 180-149 and find that the answer is 31 degrees. So you would do 13x+5=31, 31-5=26, 26/13, and then x=2 :)
7 0
3 years ago
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