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
victus00 [196]
4 years ago
7

Chad can paint a room in 5 h. cassie can paint the room in 3 h. how long would it take them to paint the room working together?

Mathematics
1 answer:
Georgia [21]4 years ago
8 0
If Chad can paint the whole room in 5 hours, in 1 hour he gets 1/5 of it painted.  If Cassie can paint the whole room in 3 hours, in 1 hour she gets 1/3 of it painted.  If we add those together we can find out how much of the room they can paint together in one hour.  1/5 + 1/3 = 1/x, with x being the number of hours it will take them to paint the room together.  Common denominator is 15, therefore, 3/15 + 5/15 = 1/x and 8/15 = 1/x.  Cross-multiply to get 8x = 15, so it will take them 15/8 hours, or 1.9 hours to paint the whole room together.
You might be interested in
Helppppppppppppppppppppppppppp me plz
Anit [1.1K]
Yes they are equivalent expressions. If you take the z to the power of two, and subtract that from the other z to the power of two, it is zero. So you are left with four which is the answer
6 0
3 years ago
The triangles shown below may not be congruent.<br> A. True<br> B. False
Molodets [167]

Answer:

B. False

Step-by-step explanation:

Congruent Definition: having the same size and shape.

6 0
3 years ago
Read 2 more answers
The local radio tower is located 20 miles east and 12 miles north of Pamela's cabin. The radio tower has a 25 mile broadcast rad
pychu [463]

Answer:

x^2 +y^2 -40x -24y  -81 =0

Step-by-step explanation:

We can write the equation of a circle in the form

(x-h)^2 + (y-k)^2 = r^2

Where (h,k) is the center and r is the radius

Assuming that Pamela's cabin is the center

( x-20)^2 + (y- 12)^2 = 25^2

We want to get to general form

x^2 + y^2 + Dx + Ey + F = 0,

Distributing

x^2 -40x +400 + y^2 -24y +144 = 625

x^2 +y^2 -40x -24y +544 -625 =0

x^2 +y^2 -40x -24y  -81 =0

3 0
3 years ago
What is the range of the following set?<br> 46, 39, 49, 45, 42, 44, 41, 51, 40
gladu [14]

Answer:

12

Step-by-step explanation:

The range of a data set is just the difference between the largest and smallest values.

So, let's find the smallest value: it's 39. The largest value is 51.

Their difference is:

51 - 39 = 12

Thus, the answer is 12.

<em>~ an aesthetics lover</em>

6 0
3 years ago
Read 2 more answers
i need help on this question please what number represents the same amount as 6 hundreds+ 6 tens+ 14 ones?
Bess [88]
Add em up bro, 600+60+14
pretty sure the answer would be 674
it's like counting your money !
3 0
4 years ago
Read 2 more answers
Other questions:
  • james and bethany morrison are celebrating their 10th anniversary by having a reception at a local reception hall. they have bud
    7·1 answer
  • Mr green makes some compost he mixes soil, manure and leaf mould in the ratio 3:1:2 mr greenmakes 72 literes of the compost. How
    6·1 answer
  • What is 39.4 in words?
    7·2 answers
  • Use the parabola tool to graph the quadratic function.
    12·1 answer
  • Help please!!!! Best answers!!
    15·2 answers
  • The weekly salaries (in dollars) for employees of a small business are given below. (Note that these are already ordered from le
    9·2 answers
  • Carol has 10 cups of sugar to make 7 dozen cookies.if she only had 6 cups of sugar how many cookies could she make.
    9·1 answer
  • 12. One dekameter is equal to 1,000
    14·1 answer
  • Find the LCM of 3,12,16​
    13·2 answers
  • Standar form of 1.204751131
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!