Jane works 3 times as fast as Eleanor. If they work together they can do a job in 21 minutes. How long does it take Eleanor to do the job by herself?
Answers
Answer:
1 hour and 24 min
Step-by-step explanation:
Jane does 3/4 job done in 21 min
Eleanor does 1/4 job done in 21 min
21*4=84
60+24
1 hour and 24 min
The work rate when they work together is much higher than when Eleanor
does the job herself.
It will take 84 minutesReasons:
Jane's work rate = 3 × Eleanor's work rate
The time it takes both Jane and Eleanor to do a job = 21 minutes
Required:
The time it would take Eleanor to do the job herself.
Solution:
Let x represent the portion of the job performed by Eleanor in the 21
minutes, we have;
The portion performed by Jane = 3 × x
Therefore;
The job done when they work together for 21 minutes = x + 3·x = 4·x
The time it takes Eleanor to do the job portion, x = 21 minutes
Therefore;
The time it will take Eleanor to do a job of 4·x = 4 × 21 minutes = 84 minutes
The time it would take Eleanor to do the job herself = 84 minutesLearn more about work word problems here:
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Related Questions
3x+5+7x
Pls simplify!!!
Answers
Answer:
10x + 5
Step-by-step explanation:
You have to add common numbers (Variables).
3x + 7x = 10x
Then you add the 5.
10X + 5
Answer:
3x + 5x + 7x should just be 15x
Step-by-step explanation:
Hope I helped
Have a Jocular day
CAN SOMEONE HELP ME PLEASE ASAPPP GIVEING BRAINLYESTT!!!
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you can put :they both have whole numbers
Step-by-step explanation:
Please answer this question I am giving 12 points
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Answer: it is c
Step-by-step explanation:
Because 7 - 1 = 6
Hope it helps
Go with your answer
I need help ASAP!!!!!
Answers
Which expression is equivalent to -1/3 ( 6x + 15 ) - 3?
a) -2x + 12
b) -2x + 2
c) -2x - 2
d) -2x - 8
Answers
The correct answer is (D) -2x - 8.
To simplify the expression -1/3 ( 6x + 15 ) - 3, we can first apply the distributive property to the term in parentheses:
-1/3 ( 6x + 15 ) - 3 = -1/3 * 6x - 1/3 * 15 - 3
Then we can simplify using the properties of multiplication and division:
-1/3 * 6x - 1/3 * 15 - 3 = -2x - 5 - 3
Finally, we can combine like terms:
-2x - 5 - 3 = -2x - 8
The correct answer is therefore (D) -2x - 8.✅
A local hotel manager uses the equation y=115x
to determine the cost for extended hotel stays, where x is the number of days. What is the constant of proportionality?
Answers
Find are of the composite figure.
Answers
Answer:
its number d. my 1/8 brain cell said so.
Step-by-step explanation:
Please Answer Asap Will give brainliest
Two trains, Train A and Train B, weigh a total of 346 tons. Train A is heavier than Train B. The difference of their weights is 238 tons. What is the weight of each train?
Answers
Answer:
A=292, B=64
Step-by-step explanation:
A+B=346 equ 1
A>B
A-B=238 equ 2
A=238+B
input into equ 1
238+B+B=346
238+2B=346
collect like terms
2B=346-238
2B=108
divide both sides by 2
B=54
A=238+B
A=238+54
A=292
HELP LIKE ASAP!!!!!!!!!!!!!!!!
Answers
Answer: A C and D
Step-by-step explanation:
What I did was look at point A, we see it starts at (-8, 6) this means that if it were to be shifted right 9 and down 4 we would get (1, 2). so, all the answers claiming that the points were shifted right 9 and down 4, or x+9 y-4 are correct.
your answer would be the first option the 3rd and the last option
can someone help me with this a correct answer pls
Answers
Answer:
7 Units
Step-by-step explanation:
with a triangle that has angles of 45, 45, 90 or 30, 60, 90
A^2 + B^2 = C^2
In this A=5 and B=5
25 + 25 = C^2
50 = C^2
\(\sqrt{x} 50 = C\)
C = 7.07
When tossing a two-sided, fair coin with one side colored red and the other side colored green, determine P(green).
2
one half
green over red
red over green
Answers
Answer:
one half
Step-by-step explanation:
Total number of outcomes = 2
Event of obtaining green = 1
Probability of obtaining green= one half
The solution is Option B.
The probability of getting green P ( green ) = 1/2
What is Probability?The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible
Probability = number of desirable outcomes / total number of possible outcomes
The value of probability lies between 0 and 1
Given data ,
Let the probability of getting a green while tossing a coin be P ( green )
Now , the total number of colors in the coin = { red , green } = 2
The probability of getting a green = green / total number of colors in the coin
Substituting the values in the equation , we get
Probability of getting a green while tossing a coin P ( green ) = 1/2
Probability of getting a green while tossing a coin P ( green ) = 0.5
Therefore , the value of P ( green ) is 1/2
Hence . the probability is 1/2
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1/8 plus 3 1/2
Help I got 29/8 but I don't know if that's correct or if I still have to put the 3
Answers
Answer: 29/8 You were correct. You cannot simplify this problem any further. :)
Step-by-step explanation:
convert to improper fraction and find the common denominator
You are right you have got the answer good job
PLS HELP DUE SOON.....
Answers
Answer: For a translation, you need a distance and a direction.
For a rotation, you need a point that is the center of the rotation and the degree (and sometimes direction) of rotation.
For reflection you need the axis or a defined line that the triangle is reflected across.
Step-by-step explanation:
i just need the area. please no wrong answer
Answers
Answer:
78m^2
Step-by-step explanation:
to find the rectangle:
6×9=54m^2
for one triangle:
4×6=24
24÷2=12
both triangles: 12+12=24
area all together= 24+54=78m^2
1/2 x 6(17+9)
3(26)
78m^2
help me PLEASEEE: ⅗ X ⅓ =
Answers
Answer:0.2
Step-by-step explanation:
Answer:
\( \frac{1}{5} \)
Step-by-step explanation:
1) just cancle out 3.
\( \frac{1}{5} \)
Therefor, the answer is ⅕ and in decimal form it would be 0.2.
Find the final price of $ 149.99 smart watch with 8.5% sales tax?
Answers
Answer:
162.73915
Step-by-step explanation:
149.99x1.085 is
149.99 x .085 = 12.54 149.99 + 12.54=
what is 2(512-10)????
Answers
Answer:1004
Step-by-step explanation:
2*512=1024
2*10=20
1024-20=1004
Answer:
1004Step-by-step explanation:
what is 2(512-10)????
2(512-10)=
2*502=
1004
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
What is the surface area of a right circular cylindrical oil can, if the radius of its base is 4 inches and its height is 11 inches?
Answers
Answer:
1105.8 in³
Step-by-step explanation:
The surface area is the circumference of the base times the height:
A = 2πrh, which, in this problem, works out to:
A = 2π(4 in)²(11 in) ≈ 1105.8 in³
Answer:
The answer will be 1105.8 in³sq inches.
Step-by-step explanation:
You multiply 4x11 which is the diameter of 44. The the radius with it will be 22. To get the surface, you multiply it= 1105.8 in³
Please mark me brainliest!
1. simplify (2x) x 5
2. simplify (0 + c) + 12
Answers
2. Add 0 and c. C+12
0+c+12 = c+12
Ella wants to make a fruit salad for herself and 5 friends.
She has 5 cups of grapes, 3 pints of strawberries, and 1 quart of watermelon pieces.
1. How many cups of fruit salad does Ella have?
2. If she wants to share the fruit salad between herself and 5 friends, how much fruit salad will each person get?
Answer both to get brainlest. Also please explain.
Answers
2. Since there are 15 cups of fruit salad you would need to divide 15 by the number of friends which would make it 2.5 cups of fruit salad per person
2.) 3 cups per person
The circle graph shows the visitors at Ms. Chompson’s bakery last month. There were a total of 360 visitors last month. Show your work to find the answers below. Give a number, not the percent.
a) How many visitors last month were age 18 and under? ____________
b) How many were between the ages of 19-44? _____________
Answers
Answer:
15
Step-by-step explanation:
-25
Explanation:
Sana nakatulong ako
Which expression is equivalent to?
2x + 6
Group of answer choices
2(x + 4)
2(x + 3)
2(2x + 3)
8x
Thanks!
Answers
Answer: maybe 2(x + 4) and 8x
step-by- step :
(x + 4 = 4x)
2*(4x) = (2x + 6) = 8x
Mary owes her credit card company $300. The company agrees to eliminate a late charge of $25. What integer represents Mary’s new debt?
Answers
so basically you can just tell me where the boxes go and bam you get 20 points
Answers
Step-by-step explanation:
(2/3)(-4)(9) = -24
(5/16)(-2)(-4)(-4/5)= -2
(-3/4)(7/8)=-21/32
(2 3/5) (7/9)=91/45
(5/6) x (-2)(-4) x (-4/5) -> -2
(-3/4) x (7/8) -> -21/32
(2 3/5) x (7/9) -> 91/45
Which of these situations can be represented with an integer that, when combined with the opposite of −5, makes 0?
Select all that apply.
A.
You earn $5 from your chores.
B.
You walk down 5 flights of stairs.
C.
The temperature drops 5°F.
D.
You climb up 5 flights of stairs.
E.
You spend $5 on a game.
Plz help plz I will give points and brain list
Answers
Walk Down and Climb Up is both opposite.
If you climb up 5 flights of stairs will give zero. The correct option is D.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that situations can be represented with an integer that, when combined with the opposite of −5, makes 0.
If you climb up 5 flights of stairs it will give the positive value of 5 when it is added to -5 then it will give zero.
Therefore, If you climb up 5 flights of stairs will give zero. The correct option is D.
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joey needs to have at least $25 to purchase a birthday present for his sister. he has already saved $13.50. which inequality represents the amount of money, m, he needs to purchase the gift?
a. m ≤ 11.50
b. m ≤ 28.50
c. m ≥ 28.50
d. m ≥ 11.50
Answers
Select all the relations that are functions.
Answers
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
Reason 4:
Answers
Answer:
Step-by-step explanation:
reason 1:
opening of brackets to solve the expression
reason 2:
in multiplication order is followed i.e. the number always lead the variable in the expression
reason 3:
for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable
reason 4:
the solved and simplified expression is delivered as a result
word problems....my worst enemy...
Answers
Answer:
15 cup
Step-by-step explanation
So i was thinking because each student gets 5 ounces and and there is 24 students. Which means first you have to:
24x5= 120
You know that there are 120 ounces in total but you have to find how many cups the teacher has. So 120 ounces equals 15 cups im pretty sure.
Answer: 15 cups
Step-by-step explanation: ok this question sounds like it's going to be weird and complicated but it's not this question gave you information you do not need to trip you up ignore that the cornstarch and water don't matter what the question wants is cups of slime 5oz per student 24 students 5X24=120oz 120oz=15 cups
hope this helps