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-Dominant- [34]
2 years ago
14

Plz help me with this problem

Mathematics
2 answers:
zvonat [6]2 years ago
7 0

Answer:

what is the problem

Step-by-step explanation:

Lorico [155]2 years ago
5 0

Answer:

what is the whole thing

ill answer in comments

Step-by-step explanation:

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What number needs to be added to 5 and 3 so that the ratio of the first number to the second
Mashcka [7]

Answer:

3

Step-by-step explanation:

Choose a variable to represent the number to be added to 5 and 3.

\frac{5+x}{3+x}=\frac{4}{3}

"Cross-multiply."

3(5+x)=4(3+x)\\\\15+3x=12+4x\\\\15=12+x\\\\3=x

Check:  The ratio of 5+3 to 3 + 3 is 8:6, equal to the ratio 4:3.

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2 years ago
Last year, the school library had a total of x books. Over the summer, the library acquired another 42 books and now has a total
natta225 [31]
B.x + 42 = 2,402 letter b
4 0
3 years ago
Which ordered pair is a solution to the equation y+1=3(x-4)
Talja [164]

Answer:

(0,-13),(1,-10),(2,-7)

Step-by-step explanation:

Hope this helps! Please mark as brainliest.

Thanks!

7 0
3 years ago
How would you solve the equation 4× =100​
gogolik [260]

Answer:

divide both sides by 4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can someone help me please
aleksklad [387]

9514 1404 393

Answer:

 IS a parallelogram

Step-by-step explanation:

The slope formula for the slope of the line between points (x1, y1) and (x2, y2) is ...

  m = (y2 -y1)/(x2 -x1)

The distance formula for the length of that same line is ...

  d = √((x2 -x1)^2 +(y2 -y1)^2)

Here, you're asked to use each of these formulas 4 times, once for each side of the quadrilateral. I find it convenient to let a calculator or spreadsheet do the repetitive calculations. The result is attached.

The attachment shows that opposites sides have the same length and slope, so are parallel. The quadrilateral is a parallelogram. (The two points used in each calculation are the ones on the result line and the line immediately below. That is why point B is copied to the end of the list.)

_____

<em>Additional comments</em>

There are much simpler ways to prove the figure is a parallelogram. My favorite is to add the coordinates of the end points of the diagonals:

  B +D = (-2+6, -9-3) = (4, -12)

  C +E = (0+4, -5-7) = (4, -12)

These values being the same demonstrates the midpoints of the diagonals are coincident. That will only be the case if the quadrilateral is a parallelogram.

__

If you must use slope and distance formulas, showing either pair of opposite sides is parallel and have the same length is sufficient to guarantee that the other two sides are also parallel and have the same length. That is, the calculations required in this problem only need to be applied to one pair of opposite sides. (Using a spreadsheet, it's not a lot of extra work to do the calculations for both pairs of opposite sides.)

7 0
2 years ago
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