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
Leona [35]
3 years ago
9

it takes 63 minutes for four people to paint nine walls how many minutes does it take seven people to paint four walls?

Mathematics
1 answer:
joja [24]3 years ago
3 0

Answer:

16 minutes

Step-by-step explanation:

If it takes 63 minutes to paint 9 walls then it means for every wall, it takes 63/9=7 minutes

Since it is 4 people working for 7 mins, the individual rate is 4/7 minutes per person

When we have 7 people, then the number minutes they take will be 7*4/7=4 minutes per wall

4 min per wall for 4 walls then total time will be 4*4=16 minutes

You might be interested in
You are remodeling your kitchen. You've contacted two tiling companies who
ICE Princess25 [194]

Answer:

12x=10(25+x)

Step-by-step explanation:

Jim's rate=x

Pete's rate=y

Jim and Pete lays the same number of tiles.

So we have,

12x=10y

Pete's can lay 25 more tiles than Jim per hour

We have

y=25+x

Substitute y=25+x into 12x=10y

12x=10y

12x=10(25+x)

12x=250+10x

12x-10x=250

2x=250

x=250/2

=125

x=125

12x=10(25+x) is the equation used to find the rate that Jim can lay tiles

3 0
3 years ago
PLSSS HELP!!! 40 pts!!!!
quester [9]

Answer:

∠1=135°

∠2=45°

∠3=45°

∠4=135°

∠5=135°

∠6=45°

∠7=45°

∠8=135°

Step-by-step explanation:

→∠1=∠4[Being vertically opposite angles]

→∠4=135°

→∠1=∠5[Corresponding angles]

→∠5=135°

→∠5=∠8[Being vertically opposite angles]

→∠8=135°

→∠1+∠2=180°[Sum of linear pair]

→∠2=180°-135°

→∠2=45°

→∠2=∠3[Being vertically opposite angles]

→∠3=45°

→∠3=∠6[Alternate angles]

→∠6=45°

→∠6=∠7[Being vertically opposite angles]

→∠7=45°

3 0
2 years ago
Read 2 more answers
I will give 30 points if u help now
Amiraneli [1.4K]

Answer:

3. x=16

4. x=51

Step-by-step explanation:

3. 3x-8=x+24

2x=32

x=16

4. 2/3(x+27)= 180-(3x-25)

2/3x+18=180-3x+25

11/3x=187

11x=561

x=51

5 0
3 years ago
Read 2 more answers
Given x=2 and y=4, then x*2 y is
Zarrin [17]

Answer:

16 I guess

Step-by-step explanation:

2*2 is 4

Then 4 times 4 is 16.

7 0
3 years ago
Read 2 more answers
Use the distributive property to simplify the expression 6(s-9
Natalija [7]
You have to multiply the 6 by both s and -9

So you will get 6s - 54 which is the answer
7 0
3 years ago
Other questions:
  • Can someone give example for parabole questions ?? Plss i am bad at math
    8·1 answer
  • Patty's Party Store mixes almonds and cashews in their Gourmet Mix in a ratio of 6 to 5. If one batch of this mix has 18 ounces
    15·1 answer
  • Please help me! Will give brainliest!
    12·1 answer
  • Which graph could represent a constant blalance in a bank account?
    12·2 answers
  • Cuantos lados tiene un cuadrilátero y cuales son?
    13·1 answer
  • 4x+3y-2x where x=8 and y=12​
    12·2 answers
  • Find the area of the shape shown below.
    9·2 answers
  • Eastimate 921 + 1,256 + 117 by first rounding each number to the nearst hundred
    15·1 answer
  • What is the value of r?
    6·2 answers
  • Find the length of AB<br><br>​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!