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
valentina_108 [34]
3 years ago
15

ll the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hour

s. a How many hours would this job take if the number of workers decreased by factor of 2?
Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0

Answer:

44 hours

Step-by-step explanation:

Decreasing the people by a factor of 2 means we have 3 people

The job takes 6* 22 = 132 people hours

When we decrease the people, it will take more hours

132 people hours = 3 people * t hours

Divide each side by 3

132/3 = 3t/3

44 = t

It will take 44 hours

You might be interested in
Charlotte’s weekly paycheck is based on the number of hours worked during the week and on the weekend. If she works 13 hours dur
Gelneren [198K]
I am setting the week hourly rate to x, and the weekend to y.  Here is how the equation is set up:

13x + 14y = $250.90
15x + 8y = $204.70

This is a system of equations, and we can solve it by multiplying the top equation by 4, and the bottom equation by -7.  Now it equals:

52x + 56y = $1003.60
-105x - 56y = -$1432.90

Now we add these two equations together to get:

-53x = -$429.30 --> 53x = $429.30 --> (divide both sides by 53) x = 8.10.  This is how much she makes per hour on a week day.

Now we can plug in our answer for x to find y.  I am going to use the first equation, but you could use either.

$105.30 + 14y = $250.90.  Subtract $105.30 from both sides --> 14y = $145.60 divide by 14 --> y = $10.40

Now we know that she makes $8.10 per hour on the week days, and $10.40 per hour on the weekends.  Subtracting 8.1 from 10.4, we figure out that she makes $2.30 more per hour on the weekends than week days.
7 0
3 years ago
Read 2 more answers
Sonia makes a wooden frame around a square picture. The frame is made of four congruent trapezoids. The shorter base is 9 in, th
sp2606 [1]

answer

congruent trapezoide for one

0,5(9+12)×1,5=15,75

area of picture frame =4×15,75=63

8 0
2 years ago
What expression has the same value as 3\5|9
IgorLugansk [536]

Answer:

6/10/18

Step-by-step explanation:

Because all I did was multiply each number by two and you would still get the same answer

5 0
3 years ago
You randomly choose a tile. Without replacing the first tile, you choose a second tile. Find the probability of the compound eve
ElenaW [278]
1/9
The only multiple of 4 is 4 & it is less than 7.
7 0
3 years ago
Read 2 more answers
The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance betw
shusha [124]
We know that
circumference=2*pi*r-------> r=circumference/(2*pi)
circumference=30 in
r=circumference/(2*pi)------> 30/(2*pi)-----> 4.7746 in
the radius of a <span>standard basketball is 4.77 in
</span>
<span>the distance between the ball and the rim is equal to
</span>radius of a basketball rim minus radius of a a standard basketball  
radius of a basketball rim =18/2------> 9 in
radius of a a standard basketball=4.77 in<span>

</span>
the distance between the ball and the rim=[9-4.77]------> 4.23 in

the answer is
4.23 in
3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the 82nd term of the sequence below?
    8·1 answer
  • Neveah has created the function of f(x) = 2x+4/3 to represent the growth of her hair, where x represents the number of months si
    13·1 answer
  • Help please! 20 points!
    9·2 answers
  • Please help me simplify 4^8/4^5
    12·2 answers
  • PLZ HELP AND HURRY ILL GIVE BRAINLISEST!!! PLZ HURRY!!!
    10·2 answers
  • Perform the indicated operation and write the result in the form a + bi i^100
    13·1 answer
  • Find the volume of a given solid<br>object where the radius of base<br>is 7 cm and height is 12 cm.​
    8·1 answer
  • Use the given function to find the indicated value(s) of x. (Enter your answers as a comma-separated list.)
    8·1 answer
  • Angles PTQ and STR are vertical angles and congruent.
    8·1 answer
  • Find two irrational numbers and two rational numbers between 0.5 and 0.552.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!