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
OverLord2011 [107]
3 years ago
12

If Jeff washes his car in 6 minutes and bob washes the same car in 8 minutes. How long does it take both of them to wash the sam

e car?
Mathematics
2 answers:
Tatiana [17]3 years ago
8 0

Answer:

3 3/7 or 24/7 mins

Step-by-step explanation:

Let total job = X

Jeff's rate = X/6

Bob's rate = X/8

Combined rate = X/6 + X/8

(4X × 3X)/24 = 7X/24

7X/24 = X/T

T = X ÷ (7X/24)

T = X × (24/7X)

T = 24/7 mins

Shortcut:

T = product of individual times/sum of individual times

T = (6×8)/(6+8)

T = 48/14

T = 24/7

T = 3 3/7 mins

pishuonlain [190]3 years ago
4 0

Answer:

3 3/7 minutes or 3.4mins

Step-by-step explanation:

If Jeff washed husband car in 6 minutes and Bob washed the same car in 8 minutes , the time taken by both of them in washing the car ?

If Jeff washed the car in 6 minutes , in one minute, Jeff’s work = 1/6

If bob washed in 8mins, in one minute, bob’s work = 1/8

Add both together

1/6 + 1/8

Lcm of 6 and 8 Is 24

Divide the Lcm by the denominators and multiply the results by the numerator

We have 4+3 /24

7/24

Therefore time taken by both of them in Washing is 24/7

= 3 3/7 minutes 0r 3.4mins

You might be interested in
Suppose KLMN ~ PQRS. Find the value of x.
arlik [135]

Complete question is attached.

Answer:

B) 8

Step-by-step explanation:

In this question, KLMN ~ PQRS. This means they are similar shapes.

From the image, we could denote that:

KL ~ PQ

LM ~ QR

Given that:

KL = 12

PQ = 30

QR = 20

LM = x

To find x, let's use tge expression:

\frac{KL}{PQ} = \frac{LM}{QR}

=  \frac{12}{30} = \frac{x}{20}

Cross multiplying, we have:

12 * 20 = 30x

240 = 30x

To find x, let's divide both sides by 30.

\frac{240}{30} = \frac{30x}{30}

8 = x

x = 8

The correct option is option B.

3 0
3 years ago
The ratio to baseball to football 2 baseballs 6 footballs
ahrayia [7]

It would be 2:6, or 2 to 6.

I hope this helps :)

4 0
3 years ago
Read 2 more answers
Captain Jessica has a ship, the H.M.S Crimson Lynx. The ship is two furlongs from the dread pirate Ishaan and his merciless band
OLga [1]

Answer:

9/40

Step-by-step explanation:

Captain Jessica shoots first.  This means her ship has not already been hit, which means she has a 2/5 chance of hitting the pirate ship.  This also means she has a 1-2/5 = 3/5 chance of missing the pirate ship.

Since Captain Jessica misses, dread pirate Ishaan has a 3/8 chance of hitting the captain's ship.  This means he has a

3/5(3/8) = 9/40 chance of the captain missing the pirate and the pirate hitting the captain.

6 0
4 years ago
beth has a total of $6000 to invest, part at 6% simple interest and part at 8% simple interest. Her return for one year is $410.
natita [175]
Since interest=investment*interest rate*time in years for simple interest, we know that there are 2 separate investments. If the amount invested at 6% simple interest is x dollars and the amount invested at 8% is y dollars, then we know that x+y=6000 since she spent all 6000 dollars on only 2 separate investments. Subtracting y from both sides, we get that 6000-y=x. In addition, we know that her interest for the 6% interest rate is x*0.06*1 as well as y*0.08*1 for the 8% simple interest. Since the total interest is 410$, we know that x*0.06*1+y*0.08*1=410. Since y=6000-x, we plug that in to get x*0.06+(6000-x)*0.08=410. Using the distributive property to expand, we get x*0.06+480-0.08x=410=-0.02*x+480. Subtracting 480 from both sides, we get -0.02*x=-70. After that, we can multiply both sides by -50 (since -0.02 times -50 is 1) to get x=3500=amount invested at 6%. Since the amount invested at 8% is 6000-x, that equals 6000-3500=2500
6 0
3 years ago
How are credit unions different from banks?
JulijaS [17]

Answer:

  (c)  Credit unions are nonprofit financial institutions

Step-by-step explanation:

A bank is a financial institution owned by stockholders. It has the intention of making a profit, a portion of which benefits the stockholders. A full-service bank offers loans (at interest), savings and checking accounts, credit and debit cards, and access to ATMs. It may also offer safe deposit boxes. Fees may be charged for any or all of these services.

__

A credit union is a non-profit financial institution. It is owned by its members, who obtain the benefit of lower fees for services. A full-service credit union offers loans (at interest), savings and checking accounts, and credit and debit cards. It will generally offer access to one or more networks of ATMs. Many of these services are free to members.

__

Banks and credit unions are subject to different regulatory requirements.

8 0
2 years ago
Other questions:
  • A single die is rolled twice. The 36​ equally-likely outcomes are shown to the right. Find the probability of getting A second n
    7·1 answer
  • The height, h, in feet of a ball suspended from a spring as a function of time, t, in seconds can be modeled by the equation (eq
    7·2 answers
  • Whats the decimal that is equivalent to 3/11
    14·2 answers
  • Which represents an even function?
    12·1 answer
  • 180 IF LCM OF 12 AND A NUMBER, M. WHAT ARE POSSIBLE VALUE OF M?
    11·1 answer
  • Allison can jog 3 blocks in the same amount of time it takes her brother, Blake, to jog 2 blocks. If they keep jogging at the sa
    13·2 answers
  • (4y' - 49 +8) - 092-y+3)
    8·2 answers
  • 21.
    14·2 answers
  • Solve this please !!!!
    13·1 answer
  • 6 Find the equivalent ratio for 64%. Write your answer in simplest form.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!