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user100 [1]
2 years ago
12

Help me please help me on number 20 you will get Brainliest 10 POINTS

Mathematics
1 answer:
forsale [732]2 years ago
5 0

Answer:

12 peppermint cupcakes 16 white cupcakes 22 chocolate cupcakes

Step-by-step explanation:

x+(x+4)+(x+(x+4)-6)=50

4x+4+4-6=50

4x+4-2=50

4x+2=50

4x=48

x=48/4

x=12 peppermint cupcakes

12+4= 16 white cupcakes

12+12+4-6=

12+16-6=

12+10= 22 chocolate cupcakes

check:

12+16+22=50

28+22=50

50=50 ✓

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Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.
Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079

Thanks

3 0
3 years ago
The coordinates below represent two linear equations.
satela [25.4K]
Hello,
Answer A: no solution

line 1: (-6,3), (3,6)==>y-3=(x+6)*3/9==>x-3y=-15 (1)
line 2: (-3,1), (3,3)==>y-1=(x+3)2/6==> x-3y=-6 (2)

(1)-(2)==>0x=-9 ==> no solution
line 1 // line 2

7 0
3 years ago
Joey has a beach ball with a radius of 20 cm. What volume of air will it hold when fully inflated? [Round to nearest tenth.]
nadya68 [22]
It would be D. because the volume of a sphere is 4/2 x pi x radius^3.
4 0
3 years ago
Read 2 more answers
What is the perimeter of RSTUV?
MrMuchimi

Answer:

this should be 132 units   i hope this helps!   :)

Step-by-step explanation:

so these figures are similar

we are given 3 side measurements on one, and 3 on the other

we know that side BA is 10 units, and that SR which is the same side, is 14 units

we can conclude that they added 4 units to this side

so with the other side lengths that we are given we can figure out what the length of the perimeter of RSTUV is

10 + 4 = 14

15 + 4 = 19

28 - 4 = 24  

42 - 4 = 38

25 + 4 = 29

42 TU

28 UV

19 VR

14 SR

29 ST

add all the side together to get 132 units

3 0
3 years ago
Select the vertical asymptote(s) of the function <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B%28x%2B6%29%28x-1%29%7D%
Bess [88]

Answer:

As the described function, we want to find vertical asymtotes, we find the value of x so that the denominator is equal to 0.

Here, (x - 2)(x + 6) = 0

=> x = 2, x =-6

=> Option C is correct.

Hope this helps!

:)

4 0
3 years ago
Read 2 more answers
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