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podryga [215]
2 years ago
8

Would be great if someone can help with this.

Mathematics
1 answer:
Neporo4naja [7]2 years ago
8 0

Answer:

144

Step-by-step explanation:

In a regular decagon like the one shown in the picture each angle is 144 degrees and it all adds up to 1,440. If you want proof search up "angle of a decagon"

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HILP3.)
Pachacha [2.7K]

Answer:

Step-by-step explanation:

a-number of advance  tickets

s-number of same day tickets

a*40+s*25=2400

a      +s      =75

I solve  with the substitution method

s=75-a

40a+25*(75-a)=2400

40a+1875-25a=2400

15a=2400-1875

15a=525

a=525/15

a=35

so  s=75-35

s=40

5 0
3 years ago
How would you solve this equation? How would you solve this balance problem? How are they similar??? 16 = 4 + 2x
AysviL [449]

Answer:

6

Step-by-step explanation:

Step 1:

16 = 4 + 2x

Step 2:

12 = 2x

Answer:

6 = x

Hope This Helps :)

3 0
3 years ago
Find an expression which represents the sum of (-8x+7y)(−8x+7y) and (2x-2y)(2x−2y) in simplest terms.
Yakvenalex [24]

Answer:

(-8x+7y)(−8x+7y)+(2x-2y)(2x−2y)= simplified - 68x^2+53y^2−120xy

I hope this helps ! <3

Step-by-step explanation:

3 0
3 years ago
It cost jose $8.70 to send 87 text messages. How much would it cost to send 10 text messages?
vladimir1956 [14]

Answer:

One dollar

Step-by-step explanation:

So you divide 8.70 by 87 to get 0.10. So then you multiply 0.10 by 10 to get a dollar

4 0
2 years ago
Sheila has a plan to save 45$ a month for 18 months so that she has 810$ to remodel her bathroom. After 13 months Sheila has sav
devlian [24]
B
You start at 510
So 13 months is 560
14 is 610
15 is 660
16 is 710
17 is 760
18 is 810
7 0
3 years ago
Read 2 more answers
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