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
siniylev [52]
3 years ago
9

joe and Bill are working on building a stone wall that will be 120 feet long. Joe works from one end and is able to build one te

n foot section in 5 hours. Bill starts from the other end and is able to finish a ten foot section in 4 hours. How long will it take Joe and Bill to finish building the wall?
Mathematics
2 answers:
konstantin123 [22]3 years ago
4 0

Joe completes an average of (10 ft)/(5 h) = 2 ft/hour. Bill completes an average of (10 ft)/(4 h) = 2.5 ft/hour. Together, they complete 2+2.5 = 4.5 ft/hour. At that rate, it will take them

... (120 ft)/(4.5 ft/h) = 26 2/3 h

Nuetrik [128]3 years ago
4 0
26 hours to complete the wall
You might be interested in
Pleaseee helpppp !!!!!!!!! Will mark Brianliest !!!!!!!!!!!
LiRa [457]

Answer:

30

any more help just ask

3 0
3 years ago
Read 2 more answers
PLEASE HELP. Please show all work. Im giving 80 points to whoever answers it first.
mr_godi [17]

Answer:

1.1) B=12.42°, C=146.58°, c=15.37  

1.2) B=8°, C=124°, c=35.7  

2) In the case of SSA, when the given angle A is acute (<90°), the side "a" (opposite to the given angle "A") is less than the other given side "b" (a<b), and a > b sinA.  

3.1) Perimeter = 31.37 units, Area = 16.5 square units  

3.2) Perimeter = 73.70 units, Area = 75.6 square units  

4.1) Magnitude of vector AB=5.1

4.2) Direction of vector AB=348.69°  

5.1) The dot product of two vectors is equal to the sum of the product of their components

5.2) a . b = 10  

6.1) Trigonometric form: z = 3√2 (cos 315°+ i sin 315°)  

6.2) The 4th roots are:  

w1 = 18^(1/8) [cos(78.75°) + i sin(78.75°)]

w2 = 18^(1/8) [cos(168.75°) + i sin(168.75°)]

w3 = 18^(1/8) [cos(258.75°) + i sin(258.75°)]

w4 = 18^(1/8) [cos(348.75°) + i sin(348.75°)]


Step-by-step explanation:

3.1) Perimeter: P = a+b+c → P = 10+6+15.37 → P = 31.37  

Area: A = a b sinC / 2

Replacing the known values:

A = (10)(6) sin 146.58325418° / 2 → A = 60(0.55072472) / 2 →

A = 16.52174152 → A = 16.52 square units


3.2) Perimeter: P = a+b+c → P = 32+6+35.70 → P=73.70

Area: A = a b sin C /2

Replacing the known values:

A = (32)(6) sin 123.99036327° / 2 → A = 192(0.82913161) / 2 →

A = 75.59663485 → A = 75.6 square units

3 0
3 years ago
Please help i will give brainly thanks
Ede4ka [16]

Answer:

46.75m OR 47m

Pls make me Brainliest :DD

5 0
2 years ago
What is .6667 as a fraction? in simplest form?
ss7ja [257]
It would be 2/3 because 2 divided by 3 on a calculator is .6667
8 0
3 years ago
Dara ran on a treadmill that had a readout indicating the time remaining in her exercise session. When the readout indicated 24
malfutka [58]

Answer:

The correct option is E. 16 min 12 sec.

Step-by-step explanation:

Consider the provided information.

When the readout indicated 24 min 18 sec, she had completed 10% of her exercise session.

That means 24 min 18 sec is 90% of her exercise time.

First convert the 24 min 18 sec into seconds:

24 min 18 sec = 1440+18 = 1458 seconds

Let x represents the 100%.

\frac{1458}{x}=\frac{90\%}{100\%}

x=\frac{1458}{0.9}

x=1620

That means the total time of workout was 1620 seconds or 27 minutes.

Now she had completed 40% of her exercise session, that means the readout will indicate 60% of the time.

Calculate the 60% of 1620 as shown:

1620\times \frac{60}{100}=972

Now convert 972 seconds into minutes as shown:

972 seconds = 960 seconds + 12 seconds = 16 min 12 seconds

Hence, the correct option is E. 16 min 12 sec.

7 0
3 years ago
Other questions:
  • If the population of Boston, MA was 641,071 in 1970 and 574,283 in 1980 what would you expect the population to have been in 197
    9·1 answer
  • Step by step order ....
    15·2 answers
  • Which system is equivalent to 5y^2+6y^2=50
    7·1 answer
  • Which of the following options is a 3rd degree polynomial with exactly 1 real
    10·1 answer
  • Half of the sum of two and a number multiplied by itself three times
    10·1 answer
  • Solve for x : 8(2x+3)=-2x+96
    9·2 answers
  • Eighteen less than 9 times a number is the same as 14 more than the number.<br> Comply the equation
    7·1 answer
  • Evaluate <br>2-8÷-2-3-12÷-6×-2<br>​
    11·1 answer
  • 17x2 + 7x - 14<br> This algebra 1
    10·1 answer
  • P= 3⁷ × 11² and Q= 3⁴ × 7³× 11 The HCF of P and Q​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!