1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Komok [63]
3 years ago
5

Sally can paint a room in 9 hours while it takes Steve 5 hours to paint the same room. How long would it take them to paint the

room if they worked​ together?
Mathematics
1 answer:
KatRina [158]3 years ago
8 0

Answer: About 3 hours and 5 minutes to paint the room together.

Step-by-step explanation:

Sally can paint 1/5 of the room in an hour and Steve can paint 1/8 of the room in an hour.

Room/Hour

1/5 ± 1/8 =8/40  

8/40+5/40=13/40

How long to paint the room?

13/40 x 1= 40/13

40÷13=3.0777

So the answer will be Sally and Steve can paint the room in about 3 hours and 5 minutes

You might be interested in
Find the length of the third side of each triangle mark
Sedaia [141]

Answer:

I'm going to use the Pythagoras theorem

1. hypotenus²= base²+height²

h²=80²+18²

h²=6400+324

√h²=√6724

hypotenuse= 82

2. 53²=45²+h²

2809=2025+h²

2809-2025=h²

784=h²

√784=√h²

h=28

3. 40²=b²+24²

1600=b²+576

1600-576=b²

√1024=√b²

b= 32

5 0
3 years ago
Question in picture <br> look below
Tcecarenko [31]

Answer:

20/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which classification describes the system of linear equations?
Aleksandr [31]

Answer:

A system of two linear equations can have one solution, an infinite number of solutions, or no solution. Systems of equations can be classified by the number of solutions. If a system has at least one solution, it is said to be consistent . If a consistent system has exactly one solution, it is independent .

Step-by-step explanation:

3 0
1 year ago
How do I solve this using the Pythagorean theorem​
charle [14.2K]

Answer:

x=3

Step-by-step explanation:

First would need to convert the radical into a number.

And since if you have a perfect square of a radical it goes outside the square root sign, you would take the 3 and square it to make 9 and then take the 2 inside the square root sign and multiply so you have the square root of 18|

Since we have \sqrt{18} as the Leg c we would need to square it, squaring a square root sign would just cause them to be cancelled out and you being left with 18, afterwards find the square of 3, which is 9

18-9=9

square root of 9 = 3

3 0
3 years ago
Factor the expression. 9b2 – 25 a. (5b + 3)(5b – 3) b. (3b – 5)(3b – 5) c. (3b + 5)(3b + 5) d. (3b + 5)(3b – 5)
Snowcat [4.5K]

Answer:

Dear user,

Answer to your query is provided below

Option (d) is correct.

Step-by-step explanation:

Explanation of the same is attached in image

4 0
3 years ago
Other questions:
  • Hello could u please help with this question??
    13·2 answers
  • Please answer this correctly
    12·2 answers
  • Write each fraction or mixed<br> number as a decimal and percent<br>2/5
    12·2 answers
  • You measure 34 backpacks' weights, and find they have a mean weight of 33 ounces. Assume the population standard deviation is 10
    15·1 answer
  • Camden is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 5 points. What would
    10·1 answer
  • A flying squirrel's nest is 12 feet high in a tree. From its nest, the flying squirrel glides 20 feet to reach an acorn that is
    14·1 answer
  • Please solve this or find an answer key.
    5·1 answer
  • In January 2010, Diana invested $4,500 in an account that paid interest compounded annually. the table showstopper balance of th
    6·1 answer
  • The vertices of a rectangle are listed below.
    7·1 answer
  • Find the missing angle.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!