Answer:
Let's suppose that each person works at an hourly rate R.
Then if 4 people working 8 hours per day, a total of 15 days to complete the task, we can write this as:
4*R*(15*8 hours) = 1 task.
Whit this we can find the value of R.
R = 1 task/(4*15*8 h) = (1/480) task/hour.
a) Now suppose that we have 5 workers, and each one of them works 6 hours per day for a total of D days to complete the task, then we have the equation:
5*( (1/480) task/hour)*(D*6 hours) = 1 task.
We only need to isolate D, that is the number of days that will take the 5 workers to complete the task:
D = (1 task)/(5*6h*1/480 task/hour) = (1 task)/(30/480 taks) = 480/30 = 16
D = 16
Then the 5 workers working 6 hours per day, need 16 days to complete the job.
b) The assumption is that all workers work at the same rate R. If this was not the case (and each one worked at a different rate) we couldn't find the rate at which each worker completes the task (because we had not enough information), and then we would be incapable of completing the question.
Evaluate 0.5m + 1.2m when m = 4
Answer:6.8.
Step-by-step explanation: 0.5(4) + 1.2(4) 2 + 4.8= 6.8.
Convert the following equation to Slope-Intercept Form
HINT: Slope-Intercept Form is y = mx + b
y-8= 3(x + 5)
Answer:
y = 3x + 23
Step-by-step explanation:
Given the equation :
y - 8 = 3(x + 5)
We are to convert the equation to slope - intercept form:
Recall: general form of a slope - intercept model:
y = mx + c
Hence,
y - 8 = 3x + 15
y = 3x + 15 + 8
y = 3x + 23
Comparing :
y = mx + c
y = 3x + 23
Use what you know about end behavior to match each function in standard form with its graph below.
Answer:
2=C
3=A
4=D
5=B
Step-by-step explanation:
Answer:
2=C
3=A
4=D
5=B
Step-by-step explanation:
The total cost of the raffle tickets is proportional to the number of tickets bought. Sam can buy 5 raffle tickets for $4. What is the cost per ticket?
Answer:
.8
Step-by-step explanation:
4/5=.8
What’s the GCF OF 48 and 30??
Answer:
GCF OF 49 AND 30 IS 6
Step-by-step explanation:
greatest common factor
helppp ill mark u as brain list
Answer:
It is hard to see the picture, but I think it is 6.
Step-by-step explanation:
1 kilogram =2.2
1 stone=14 pound
change 42 kilogram into stones
Answer:
6.6 stones
Step-by-step explanation:
1kg=2.2 pounds=>42kg=2.2*42poumds=92.4pounds
1stone=14pounds=>92.4pounds=92.4÷14stones=6.6stones
What’s the answer to m/3-2m/5=1/5
Answer:
m = - 3
Step-by-step explanation:
[tex]\frac{m}{3} - \frac{2m}{5} = \frac{1}{5}[/tex]
It is much easier to work with whole numbers, compared to fractions, hence one should remove the denominator of the fraction. This can be done by multiplying by the LCM (least common multiple). In this case, it is fairly obvious that the LCM of 3 and 5 is 15. Therefore multiply the entire equation by 15.
[tex]15*\frac{m}{3} - 15*\frac{2m}{5}=15*\frac{1}{5}[/tex]
Simplify
[tex]5m-6m=3[/tex]
[tex]-m=3\\m=-3[/tex]
The functions g and h are such that g(x)=2x+5 and h(x)=ax+b
the answer is : a=9 and b=-1
bc + 5a = help pls!!!!!!!!!!!!!!!!!!!!!
Answer:
the answer is -72-41
Step-by-step explanation:
Solve this system
5x – 4y + 2z = 21
-x - 5y + 6z=-24
--x – 4y + 5z =-21
O x = 5, y = -1, z = -4
0 x = 1, y = 5, z = -4
O x=-5, y = 1, z = -4
O x = -4, y = -1, z = 5
Answer:
Its the first option
Step-by-step explanation:
A donut shop has fixed costs of $32 per V day, and $2 per muffin sold. This formula can be represented by y = 2x + 32 , where x is the number of muffins sold, and y is the cost per day. Write this relationship in functional notation, as a function C(m) , where C(m) represents the cost for m muffins sold. Select the ordered pair that would represent this function C, given m. (32, (2)) 32 (m, 2m + 32) (2m + 32, m) (c(m), m)
Piper opened a savings account with $1400 that pays no interest. She deposits an
additional $50 each week thereafter. How much money would Piper have in the
account 47 weeks after opening the account?
Answer: Piper will have $3750
Step-by-step explanation:
In this situation we will represent the total amount she have in the bank by y and the number of weeks by x
The whole situation can be represented by the the equation
y = 1400 + 50x where y is the total amount , 1400 is the initial amount Piper deposited , 50 is of course the amount Piper will deposit each week , and x is the number of weeks.
Now since they are looking for the amount Piper will have in his account, you have to input 47 for x and solve for y.
y = 1400 + 50(47)
y = 1400 + 2350
y = 3750
What is the slope-intercept form of the equation of the line that passes through the points (9, 5) and (4, 1)?
Answer:
y=4/5x+-11/5
Step-by-step explanation:
might no be but im sleepy so
Answer:
y=4/5x−11/5
Step-by-step explanation:
Just took the test
I don't know if it's supposed to do with (n-2)180
Also please explain :D
Step-by-step explanation:
[tex] sum \: of \: interior \\ \: angels \: is \: 2340 \: degrees. \\
(n−2)⋅180=2340 \\
180n - 360=2340 \\ 180n = 2700 \\
n=15 \\
number \: of \: sides=15[/tex]
the polygon is 15 sided.
pls help I cant figure it out i give 10 points for both
Answer: the top question is 5 and the bottom question is 6
Step-by-step explanation: you do 4 times what equals 48 then u divide that by 60
do you know what is 25 x 100
Answer:
2500Step-by-step explanation:
20x100=2000
5x100=500
2000+500=2500
:)
Each bag of skin contains 2.6 ft.³ of sand, how many bags of sand will need to be purchased to completely fill the sandbox?
Answer:skin?
Step-by-step explanation:
Need help with number 7 plzzz and just zoom in if u can’t see and I’ll love u forever
Answer:
Good luck
Step-by-step explanation:
So far, Phillip has completed 3/4 of his run. If he has run 9 miles, how far does he plan to run
Answer:
He has to run a total of 12 miles and has 3 more miles to run
Step-by-step explanation:
Well we know that 3/4 is 9 out of the total miles he is willing to run. We can divide 9 by 3 to get 1
Now we know 1/4 of his run is 3 miles
3*4= 12
He has to run a total of 12 miles and has 3 more miles to run
Answer:
He plans to run 12 miles
Step-by-step explanation:
He plans to run 12 miles because if he ran 9 miles so far and that is 3/4 of his way then you would do 3 divided by 9 to get 3. Then you would add a 3 to nine because that 3 would be the last quarter t complete his run.
What is Becca’s speed in miles per hour?
Answer:
1.5 OR 1 1/2
Step-by-step explanation:
Convert the fractions into decimals.
9/10 = 0.9
3/5 = 6/10 = 0.6
Divide the decimals.
0.9/0.6 = 1.5
Convert back to fraction.
1.5 = 1 1/2
PLEASE HELP MEEE
I don’t under this at all
I don’t need to show my work but I just need the answer or help
Answer:i think 1
Step-by-step explanation:
Answer:
2x+4=5
Step-by-step explanation:
there are two positive x boxes do 2x 4 positive boxes so +4 and 5 positive boxes.
What is an equation for the translation of y = |x| down 8 units?
What is the x-coordinate of point B? Write a decimal coordinate.
Answer:
-1.5
Step-by-step explanation:
Hope this helps! :D
i need help anyone know
Answer:
yes ur correct its nonlinear lol
Step-by-step explanation:
Solve for x. y +X=b Help!
9514 1404 393
Answer:
x = b - y
Step-by-step explanation:
To get x by itself, subtract y from both sides.
y + x = b . . . . . . . . . given
y - y + x = b - y . . . . subtract y
x = b - y . . . . . . . . . simplify
What do I put as the answer ?
Answer:
33
Step-by-step explanation:
a right angle is 90 degress since the other side is 57 than ac must be 33
On the playground, 1/4 of the students are on the jungle gym, and 1/3 f the students are playing kickball. What part of all the students on the playground is on the jungle gym or playing kickball?
Answer:
7/12 of the students
Step-by-step explanation:
So first you would need to get your fractions to have the same denominator. When your trying to get your fractions to get the same denominato. You must multiply both the numerator and denominator.
The most common denominator from 1/4 and 1/3 is 12. So you multiply both the numerator and denominator of 1/4 by 3. So then your new fraction is 3/12. Now you multiply 1/3, both numerator and your denominator by 4. Then your new fraction is 4/12. So The last step is to add both of your numerators. Never add the denominators together. And at last you have your answer. 7/12.
(Hope this helps! Brainliest?)
Please hurry!!! Urgent!!!
Answer:
x=9
Step-by-step explanation:
-1+14x=12x+17
2x=18
x=9
Answer: x=9
Step-by-step explanation:
so the equation on top -1+14x= 125
and 12x+17= 125
Water along the Mississippi River is rising at a rate of 24.8 cm/hr. The top of a dock in the river currently sits only 1.2 meters above the water. How many hours will it take the water to reach the top of the dock
Answer:
4.84*10^-4hoursStep-by-step explanation:
Speed = Distance/Time
Time = Distance/Speed
Given
Distance = 1.2m = 0.012cm
Speed = 24.8cm/hr
Get the time;
Time = 0.012/24.8
Time = 4.84*10^-4hours
Hence it will take the water 4.84*10^-4hours to reach the top of the dock