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gtnhenbr [62]
3 years ago
13

There are 63 color pencils of which 14 are black, 21 are white and the remaining are yellow.

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
6 0

Answer:

4/9

Step-by-step explanation:

seraphim [82]3 years ago
3 0
7/25
i think :)
kenddnnfnccnnccnnfnddk
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Me ajudem com a 3º questão
Alisiya [41]

I can't read that language but I'll guess it says write a second degree equation then solve for n when d=10.

10 = \dfrac{n(n-3)}{2}

20 = n^2 - 3n

n^2 - 3n - 20 = 0

Answer: n² - 3n - 20 = 0

That doesn't factor so there is no integer n solution.

That means there are no polygons with 10 diagonals.

n = \frac 1 2(3 \pm \sqrt{89})

7 0
3 years ago
What is the largest angle of WXY?
marin [14]

Answer:

This is because the longest side in triangle WXY is side XY (15 units), therefore making the largest angle in that triangle, angle XWY, or angle W.

Step-by-step explanation:

4 0
3 years ago
HELP PLEASE if I don’t turn this in it’ll make my grade drop to a 60% I will give brainiest to whoever answers this!
GenaCL600 [577]
2) Larger triangle is twice as large as the smaller one so x is 16
3) 16/12.8= 1.25 (This is the scale factor)
for y: 10/1.25=8
for x: 30/1.25=16
4) 8/6.4=1.25 (Scale factor)
for y: 14/1.25=11.2
for x: 15/1.25= 12
5) 22.5/9= 2.5 (scale factor)
for x: 12x2.5=30
for y: 35/2.5= 14
6) No because the scale factor is 2 but 14/8 does not equal to 2
7 0
2 years ago
Help me with this now please
otez555 [7]

Step-by-step explanation:

davis is right.

5 0
3 years ago
Suppose that y varies directly with x<br> and y3 when x = 9. What is y<br> when x = 18?<br> y = [?]
exis [7]

Answer:

y=6

Step-by-step explanation:

y=kx

3=9k

k=3/9

k=1/3

y=kx

y=1/3 × 18

y=6

8 0
2 years ago
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