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Nikitich [7]
3 years ago
13

John, Rick, and Molli paint a room in 3 hours. John can paint a room in 9 hours, and Rick can do it in 11 hours. How long does i

t take Molli? Please show your work.
Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0
I believe the answer is 1. Sorry if it's wrong
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levi works 8 hours each workday . He works every day for 10 days. If he made 620 during those 10 days ,how much does levi make p
Agata [3.3K]

Answer:

7.75$

Step-by-step explanation:

620/10 = 62

This gives you the amount of hours (8) in the day

62/8 = 7.75

This gives you how much Levi makes each hour :)

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2 years ago
What is the value of x in the equation 3(2x + 8) = 0? Group of answer choices −8 −4 4 8 please hurry!
Dafna11 [192]

Answer:

-4

Step-by-step explanation:

3(2x+8) = 0

Distribute

6x + 24 = 0

24 = -6x + 0

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8 0
3 years ago
A certain type of bacteria doubles in population every 6 hours. There were approximately 100 bacteria at the beginning of the da
Zepler [3.9K]

Answer:

1600 after 24 hours

Step-by-step explanation:

100+100 = 200 after 6 hours

200+200 = 400 after 12 hours

400+400 = 800 after 18 hours

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5 0
3 years ago
J'ai un exercice de maths pour demain merci de commenter au plus vite
kari74 [83]
Oui je peux the aider
8 0
3 years ago
Help me please ahhhhh
Cerrena [4.2K]
<h3>Answers:</h3>
  • ST = 23
  • RU = 8
  • SV = 5
  • SU = 10

====================================================

Explanation:

Focus on triangles SVT and UVT.

They are congruent triangles due to the fact that SV = VU and VT = VT. From there we can use the LL (leg leg) theorem for right triangles to prove them congruent.

Since the triangles are the same, just mirrored, this means ST = UT = 23.

-----------------------

Following similar reasoning as the previous section, we can prove triangle RVU = triangle RVS.

Therefore, RS = RU = 8

-----------------------

SV = VU = 5 because RT bisects SU.

Bisect means to cut in half. The two smaller pieces are equal.

-----------------------

SU = SV + VU = 5+5 = 10

Refer to the segment addition postulate.

3 0
2 years ago
Read 2 more answers
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