Una persona hace un trabajo en 6 horas, una segunda hace el trabajo en 8 horas y una tercera hace el trabajo en 10 horas. Si las tres personas trabajan al mismo tiempo ¿Cuánto tiempo durarán haciendo el trabajo?
a) 1 16/47 horas.
b) 2 26/47 horas.
c) 3 1/47 horas.
d) 4 36/47 horas.
Answer:
b) [tex]2\dfrac{26}{47}\ \text{horas}[/tex]
Step-by-step explanation:
Tiempo necesario para completar el trabajo en primera persona = 6 horas
Trabajo hecho en 1 hora = [tex]\dfrac{1}{6}[/tex]
Tiempo necesario para completar el trabajo por segunda persona = 8 horas
Trabajo hecho en 1 hora = [tex]\dfrac{1}{8}[/tex]
Tiempo necesario para completar el trabajo por tercera persona = 10 horas
Trabajo hecho en 1 hora = [tex]\dfrac{1}{10}[/tex]
El tiempo necesario para completar el trabajo juntos viene dado por
[tex]\dfrac{1}{\dfrac{1}{6}+\dfrac{1}{8}+\dfrac{1}{10}}=\dfrac{1}{\dfrac{47}{120}}\\ =\dfrac{120}{47}=2\dfrac{26}{47}\ \text{horas}[/tex]
El tiempo necesario para completar el trabajo juntos es [tex]2\dfrac{26}{47}\ \text{horas}[/tex].
Jada completed her homework in 40 minutes. It took Andre 175% of Jada's time to complete the same homework. a) Who took longer to complete their homework? b) How long did it take Andre to complete his homework? Show your thinking on the tape diagram or another model.
add explanation too please
Answer: I think it took Andre 70 minutes
Step-by-step explanation:
Answer:
A.) Andre B.) 70 min
Step-by-step explanation:
A.) the key words are that it took andre 175% of Jada's time
B.)just take Jadars time 40 and multiply it by 175% or 1.75 as for the digram show Jadars as 100% and Andres as an extra 175% sorry i cant realy draw one right now
does canned spam taste good?
Answer:
its fine because
Step-by-step explanation:
People who grew up with it often find it to be fine, good, or even delightful. Others may find it to be absolutely disgusting. Personally, I think SPAM tastes fine, but it's a bit too salty on its own. So, I think it's best when eaten with other foods that need some extra salt (like rice, eggs, etc.).
Answer:
-depending on what you like it taste like a salty, and slightly spicy, ham flavor.
i dont get this please help!
Irma and Kate have summer jobs selling newspaper subscriptions door-to-door, but their
compensation plans are different. Irma earns a base wage of $15 per hour, as well as $1 for
every subscription that she sells. Kate gets $2 per subscription sold, in addition to a base
wage of $6 per hour. If they each sell a certain number of subscriptions in an hour, they will
end up earning the same amount. How many subscriptions would that be? How much would
each one earn?
If Irma and Kate sell
subscriptions in an hour, they will each earn $
(X+5)+(x-5)=56 what does x=?
Answer:
x=28
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
x+5+x−5=56
x+5+x+−5=56
(x+x)+(5+−5)=56(Combine Like Terms)
2x=56
2x=56
Step 2: Divide both sides by 2.
2x/2=56/2
x=28
plz give me brainiest
A swimmer is training for a upcoming meet he swims 10 laps the first day each day he increases the number of laps he swims by 5 which best describes the function
10+5=15
He swam 15 laps the second day
Will mark brainliest
Answer:
A and C are the right answers
Step-by-step explanation:
Top row only
3 out of the 12 squares are shaded in therefore 3/12 which you can simplify into 1/4
Left column only
3 out of the 6 squares are shaded in therefore 3/6 which you can simplify into 1/2
I agree I think the correct answers are A and C
2) Dave borrowed $475 from his credit union at a rate of 5.5% for 2 years. How much will he have to pay them back? *
Answer
$55
Step-by-step explanation:
Finance charge = Interest + Other costs
= $50 + 5
= $55
1 fourth to the 3rd power as a fraction
Answer:
1/64
Step-by-step explanation:
(1/4)³
1³/4³ = 1/64
Which of the following best describes the solution to the equation below?
28 + 6x = 9x
A.
exactly one real solution,
B.
infinite real solutions
C.
no real solutions
D.
exactly one real solution,
Answer:
Option A or D
Step-by-step explanation:
This is because only one variable is their which has only one exact real solution to satisfactory.
Answer:
D. exactly one real solutionStep-by-step explanation:
heres my answer hopes it helps :)
Can someone help with this math problem? 3 (x+6) = 27
Answer:
x = 3
Step-by-step explanation:
Use distributive property: a(b +c) =(a*b) + (a*c)
3(x + 6) = 27
3*x + 3*6 = 27
3x + 18 = 27 {Subtract 18 from both sides}
3x + 18 -18 = 27 - 18
3x = 9 {Divide both sides by 3}
3x/3 = 9/3
x = 3
How did the artists of the Harlem Renaissance try to combat stereotypes and racism?
Answer:
I answered your other question but I do not know the answer to this one, sorry
Step-by-step explanation:
look up Harlem Renaissance website for information
HELP IMMA DIE
find the inverse for each relation {(-5,1),(-5,-1)(-5,8)}
a. (8,-5) (1,-5) (-5.8)
b. (-5,1) (-5,-1) (-5,8)
c. (-1,5), (1.-5) (8,5)
d. (1,-5) (-1,-5), (8,-5)
Answer:
(5,-1) (5,1) (5,-8)
Step-by-step explanation:
A bridge being designed will cross the river at a right angle. The equation of the left bank of the river is j = 2x+8. The center of the bridge will pass through (0,2). What is the equation of the line representing the bridge?
This is the same as y = -0.5x+2
==========================================================
Explanation:
Refer to the diagram below.
The blue line is the graph of y = 2x+8, which is the left bank of the river.
For now, ignore the y = (-1/2)x+2 in the diagram and pretend we don't know that just yet. The red line is the bridge and it's some linear equation in the form y = mx+b. We're told the bridge is perpendicular to the river, so the bridge must also be perpendicular to the riverbank.
The blue line has slope m = 2. Apply the negative reciprocal to this to end up with -1/2. This is the perpendicular slope, and the slope of the red line. Note how the two slopes (2 and -1/2) multiply to -1. Any two perpendicular lines will have their slopes multiply to -1, as long as neither line is vertical or horizontal.
Since we want the bridge to pass through (0,2), this must mean the y intercept is b = 2.
So with m = -1/2 and b = 2, we go from y = mx+b to y = (-1/2)x + 2 which is the equation of the bridge shown in red.
This is the same as y = -0.5x + 2 since -1/2 = -0.5
CORRECT ANSWER GETS BRAINLIEST AND 5 STARS!
Answer:
Answer is B
Step-by-step explanation:
This is because there were 14 chocolate cupcakes to 21 vanilla cupcakes which in ratio form is 14 to 21 and simplified is 2 to 3
Jackie has one sister. Jackie's sister is 4 years older than her. The girls' ages add up to 28. Write an equation to solve for Jackie's age. *
Answer:
Jackie's age = 12 years and Her sister's age = 16 years
Step-by-step explanation:
Let the age of Jackie be x.
Her sister's age = (x+4)
The sum of ages = 28
ATQ,
x+x+4 = 28
2x+4 = 28
2x = 24
x = 12
Jackie's age = 12 years
Her sister's age = (12+4) = 16 years
Hence, this is the requiredsolution.
$1800 at 2% for 10 years
Answer:
$2194
Step-by-step explanation:
If this does not help you im sorry! :(
hope this helps u
Answer:
1836
Formula: P(1+r)^t
Steps- 1800$( 1 + .02)^10
instead of doing 2% we move the decimal two places to the left and get .02
From here you can just add it and get 1836$
I noticed you didn't put the annual interest rate, so I assumed it would be annually.
tell me w what is the book and notebook
Answer:
a book is something you read a notebook is something you write in.
Step-by-step explanation:
I have one question, i'll give ya'll 50 points!
Answer:
it's A you're right(this is 12 year old math)
Please help I don't understand.
9514 1404 393
Answer:
$465
Step-by-step explanation:
The problem statement tells you h represents the number of hours, and the number of hours is 7.
It also tells you f represents the number of fixtures, and the number of fixtures is 9.
And, the problem statement tells you the charge is 15h+40f, which is 15 times the number of hours plus 40 times the number of fixtures. Then the charges are ...
15·7 +40·9 = 105 +360 = 465
Ben Frank charges $465 for the work.
Answer:
if it wants an equation, 105h+360f but if its all together then its 465$
Step-by-step explanation:
15x7=105h
40x9=360f
answered
I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE
The First equation and the Third Equation
are equivalent to 6x - 24.
1) 6 ( x - 4 )
3)3 ( 2x - 8 )
Answer:
first one and third one. hope u get it right!
Step-by-step explanation:
6(x-4)
distribute (6*x and 6*4) then it equals 6x - 24
2(3x - 24) = 6x - 48
3(2x - 8) = 6x - 24
3(3x - 21) = 9x - 63
Im confused I need a bit of help
Answer:
A) 6x
Step-by-step explanation:
4x + 3x = 7x
7x - 1x (or just x) = 6x
hope this helped :)
what is 0.24% as a decimal
Answer:
.0024
Step-by-step explanation:
Hey There!
So when converting a percentage to a decimal all we have to do is move the decimal place over to the left 2 times
so it would be .0024
hope this helps ~ MarkAnswers
Answer:
0.0024
Step-by-step explanation:
0.24% = 0.0024 in decimal form. Percent means 'per 100'. So, 0.24% means 0.24 per 100 or simply 0.24/100.
i hope this helps!! brainliest?
Find the surface area of the prism.
Answer: [tex]136[/tex]
Step-by-step explanation: [tex]5x7=35[/tex] [tex]5x7=35[/tex] [tex]6x4/2=12[/tex] [tex]6x4/2=12[/tex] [tex]7x6=42[/tex] [tex]35+35+12+12+42=136[/tex]
If 5a + 3b = 19 and 4c + 2d = 14 where a, b, c, and d are whole numbers greater than zero, and where a
Answer:
a=2
b=3
c=3
d=1
I hope it helped u
what is an indulgence?
Answer:
In the teaching of the Catholic Church, an indulgence is "a way to reduce the amount of punishment one has to undergo for sins".
Answer:
In the teaching of the Catholic Church, an indulgence is "a way to reduce the amount of punishment one has to undergo for sins"
Step-by-step explanation:
Indulgence is the action or fact of indulging. (in the Roman Catholic Church) a grant by the Pope of remission of the temporal punishment in purgatory still due for sins after absolution. The unrestricted sale of indulgences by pardoners was a widespread abuse during the later Middle Ages.
Indulgence sentence example. The indulgence accentuated the division between those who accepted and those who rejected it. German chocolates are my only indulgence . I went to a party last night, and there out of five ladies three were Roman Catholics and had the Pope's indulgence for doing woolwork on Sundays.
Can someone tell me if I'm right or give me the answer? plzzz. I'm giving 100 points so... just answer quick. 0_0
Answer:
Yes, I think you have the answer correct!
Step-by-step explanation:
I hope you make a good grade!
Can anyone help me ? It’s due in 20 minutes
Answer:
area of square = 100
area of circle = 15.7
the area of the shaded = im not really sure but im thinking its 50
Step-by-step explanation:
so u see the line in the middle it say 10 cm and the square is equal on all sides so it would be 10cm for the lenth and with so it would be 10 times 10 witch is 100 and u would use the 10 for the circle aswell witch u would use 3.14 times 10 divided by 2 to get the area of the circle
Answer:
The Area of the square is 100cm^2
The Area of the Circle is 78.54cm^2
The Area of the Yellow is 21.46cm^2
Step-by-step explanation:
I need help with this math problem
Answer:
tui kobic tor hada kobic furi