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Nostrana [21]
3 years ago
12

Roland and Sam wash dogs to make extra money. Roland can wash all of the dogs in 4 hours. Sam can wash all of the dogs in 3 hour

s. How long will it take them to wash the dogs if they work together?
Mathematics
2 answers:
Sholpan [36]3 years ago
6 0

Answer:

1h 5/7

Step-by-step explanation:

I just got 100% on this quiz.

GRADPOINT

dimaraw [331]3 years ago
4 0
To complete the 100% of (the job) washing, Roland needed 4 Hours & Sam, 3 hour,
Mind you 100% = 1
Find for each one the (job) achieved in 1 hour:

Roland achieved 1/4   & Sam 1/3 each one in 1 hour.

In one hours both will achieve 1/4+1/3 =7/12

So they will complete 7/12 (of the job) in 1 hour & for a time = t they will complete 100% (or 1) of the job, that is 1/t =7/12 & t=12/7 =1.71 hour
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Simplify: (3x 2y -2) 3 / (9xy 3) 3
Dafna11 [192]

Answer:

0

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, what I would do is line it up so you can cancel things out. I.e.:

(3x*2y-2)3

(9xy*3)3

Both of the 3s can cancel out

3x*2y-2

9xy*3

2y-2

3y*3

2y/3y-2/3=2/3-2/3=0

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, thanks!

6 0
2 years ago
What's the answer !!<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B58%20%5Ctimes%2058%7D%20" id="TexFormula1" title=" \s
Vladimir [108]

Solution given:

\sqrt{58 \times 58}

\sqrt{58²}=±58

8 0
2 years ago
Read 2 more answers
Joe has 17 coins, nickels and dimes, that total up to $1.25. How many nickels does he have?
kifflom [539]

Answer:

9 nickels

Step-by-step explanation:

He has 17 coins.

$1.25 is 12 dimes and 1 nickel. But that is only 13 coins.

$1.25 can only be 17 coins if there were 9 nickels and 8 dimes.


6 0
3 years ago
If point E is the midpoint of segment AC and point D is the midpoint of segment BC, which expression represents the value of u?
siniylev [52]

Answer:

u=2s

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What line is parallel to 2x+5y=6 that goes through (5,3)
Anna11 [10]

Answer:

4y = x - 17

Step-by-step explanation:

First off, in the equation given : 2x + 5y = 6 , make y the subject of the formula which will give y = \frac{-2x}{5} + \frac{6}{5}  which make the gradient, m, the coefficient of x = \frac{-2}{5}  . Since the line we're looking for is parallel to the one we were given, their respective gradients would be the same. (If they were perpendicular, the gradient of the new line would be a negative inverse of the given line)

Then you proceed to use the one-point formula : y - y₀ = m(x - x₀), where   y₀ = 3 and x₀ = 5 from the point it goes through (5, 3)

y - 3 = \frac{1}{4}(x - 5); y - 3 = \frac{x}{4} - \frac{5}{4};  y = \frac{x}{4} - \frac{5}{4} +3

y = \frac{x}{4} - \frac{17}{4};  y = \frac{x-17}{4}  ;   4y = x - 17

7 0
2 years ago
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