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
zysi [14]
3 years ago
15

If a man take one and a half mins to paint a door how much doors can he paint in seven half hour

Mathematics
1 answer:
sashaice [31]3 years ago
7 0

Answer:

300 doors.

Step-by-step explanation:

1.5 minutes for 1 door.

7.5 hours for 300 doors.

7.5 hours = 450 minutes.

\frac{450}{1.5}=300

You might be interested in
A piece of string is 42 meters long. It is cut into three pieces so that one piece is 15 meters longer than the other two, which
Semmy [17]
To start this problem, we know that one of the three pieces that the string is cut into is 15 meters longer than the others. Subtract 15 from 42 to get 27.
Then, from there, you can cut that number (<em>divide</em>) by three to get the length of the two shorter strings. Simply add the 15 meters you didn't use yet to one of the pieces to find the longer string, and you have your lengths.

Hope this helps!
-refrac532
4 0
3 years ago
I need help to solve this question(offering 43 points)
Evgesh-ka [11]
Total volume of water=12*10*11
Let final height of water be h
Total volume of water=h*(12*10+7*10+6*5)






8 0
3 years ago
Simplify 5(х+3) – 9х+4<br> A. 14x7<br> B. -4x+7<br> C. -4x+19<br> D. 14x+19
goldfiish [28.3K]

Answer:

C

Step-by-step explanation:

start with factoring.

5x+15-9x+4

then solve

-4x+19

4 0
3 years ago
Read 2 more answers
30 POINTS!!! NEED HELP!!!!
Kaylis [27]

Answer:

b) 16 + 9 + 4 + 1 + 0 + 1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81 + 100 + 121

Step-by-step explanation:

\Sigma_{k=1}^{16} (k - 5)^2 \\= (1- 5)^2 +  (2- 5)^2 +  (3- 5)^2 + \\ (4- 5)^2 +  (5- 5)^2 +  (6- 5)^2 \\+  (7- 5)^2 +  (8- 5)^2 +  (9- 5)^2 \\+  (10- 5)^2 +  (11- 5)^2 +  (12- 5)^2 \\+  (13- 5)^2 +  (14- 5)^2 +  (15- 5)^2\\ +  (16- 5)^2 \\\\=(-4)^2 +  (-3)^2 +  (-2)^2 +  (-1)^2 +  (0)^2 \\+  (1)^2 +  (2)^2 +  (3)^2 +  (4)^2 +  (5)^2 \\+  (6)^2 +  (7)^2 +  (8)^2 +  (9)^2 +  (10)^2 + \\ (11)^2 \\\\=16 + 9 + 4 + 1 + 0 + 1 + 4 + 9 + 16 + 25 \\+ 36 + 49+ 64 + 81 + 100 + 121

6 0
3 years ago
Do all 4 pls hahahahahhahahahahaha
riadik2000 [5.3K]
1.-4
2.-6
3.2
4.-2
here you go.
5 0
2 years ago
Other questions:
  • Solve for h <br><br> ab - s - 2d - 3t = 4h <br><br> ? = h
    12·1 answer
  • PLS HELP ASAP I WILL GIVE BRAINERLIST PLUS 10 POINTS
    15·1 answer
  • The constant of proportionality
    7·1 answer
  • What is the volume of this cuboid? <br> 4cm x 5cm x 9cm<br> please help me!!
    13·2 answers
  • PLEASE HELP ME I need it fast don’t explain
    11·1 answer
  • T + 17 = 3<br> show work
    6·2 answers
  • An ice cream parlor sells milkshakes in various sizes:
    13·1 answer
  • If the vertex H of a triangle is at (- 2, 2) , what are the coordinates of H in the dilation of the triangle when the origin is
    9·1 answer
  • Kato has four groups of friends on a social media site. They are Family(6 friends), Judo (11 friends), School (14 friends). Dram
    5·2 answers
  • PLZ HELP!!! I’ll give brainly !!!!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!