A Ricardo can paint a set of kitchen cabinet in 6 hours. His father can do it in 4 hours. How long
will a take them if they work together?


PLSSS HELPP MEE

Answers

Answer 1

The time it will a take them for both ricardo and his father to finish the painting if they work together is;

t = 2.4 hours

Time for ricardo to paint the set of kitchen cabinets = 6 hours

Time for Ricardo's father to finish painting = 4 hours

This means that ricardo in 1 hour paints 1/6 of the cabinets

His father in 1 hour paints 1/4 of the cabinets

If they work together, in one hour, they would have painted;

1/6 + 1/4 = 5/12 of the cabinet

If 5/12 of the cabinet is done in an hour,

then 12/12 will be done in; ((12/12) × 1)/(5/12)

⇒ 1 × 12/5

⇒ 2.4 hours

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Answer 2

The correct answer is:  " 2 hours and 24 minutes ";

or; write as:  " 2.4 hours " .

____

Step-by-step explanation:

[tex]\frac{x}{4} + \frac{x}{6} = 1[/tex]  ;  → { " 1 (one) whole job." }.

       We want to solve for "x" ; the total time, in "hours", that will take them if they work together.
        What is the LCD (least common denominator of "4" and "6" ?
→  Note that "4 * 6 = 24" ;  so, "24" would work, but let's see if we can find the LCD —a number less then "24" ;

4:  2, 4,  12, 16, 20, 24,

6: 1, 2, 3, 6, 12

⇒  We see that "12" is the LCD.
_____
So, " [tex]\frac{x}{4} = \frac{?}{12}[/tex] " ;  to solve for "?" ;

 →  4 * (what value?) = 12 ?
   →   12 ÷ 4 = (that value) ; ⇒   =  " 3 " .
 _____
So:  [tex]\frac{x}{4} = \frac{(x*3)}{(4*3)} = \frac{3x}{12}[/tex] ;
_____
 Now:  " [tex]\frac{x}{6} = \frac{?}{12}[/tex] " ; to solve for "?" ;

→  6 * (what value?) = 12 ?
   →   12 ÷ 6 = (that value) ;  ⇒   =  " 2 " .

 _____

So:  " [tex]\frac{x}{6} = \frac{(x*2)}{(6*2)} = \frac{2x}{12}[/tex] ;

Now:  →  [tex]\frac{x}{4} + \frac{x}{6} = 1[/tex] ;

Substitute our converted values:
         →   [tex]\frac{3x}{12} + \frac{2x}{12}=1[/tex] ;

Then simplify the "left-hand side" of the equation:
_____
        →   [tex]\frac{3x}{12} + \frac{2x}{12} = \frac{(3x+2x)}{12}[/tex]  = [tex]\frac{5x}{12}[/tex]  ;

Now, rewrite the simplified equation; and bring down the "1" :
_____

        →   [tex]\frac{5x}{12} = 1[/tex]   ;

Now, solve for "x" ; as follows:
_____
 ⇒   5x  =  ( 1 * 12 )  ;

  →   5x  =  12  ;

Now, divide Each Side of the equation by "5" ;

to isolate "x" on one side of the equation; & to solve for "x" (in hours):
 _____
  →   5x / 5  =  12 / 5  ;

_____
to get:   x =  (12/5) hours.
_____
Now:  We have (12/5) of 1 hour ;     24/10

Note the exact conversion:  " 60 min. = 1 hr." :

So, 12/5 of 60 minutes;

=  " [tex]\frac{12}{5}[/tex] * [tex]}\frac{60}{1}[/tex] "  (minutes) ;
____
The "5" cancels to a "1" ;  and the "60" cancels to a "12" :

  {since:  "60 ÷ 5 = 12" ;  & since:  "5 ÷ 5 = 1 " .}.

→ And we can rewrite as:
    " [tex]\frac{12}{1} * \frac{12}{1}[/tex] "  (minutes) =  "12 * 12" minutes =  144 minutes.
⇒  " 144 minutes" equals:  How many hours?  " 144 ÷ 60  =  2.4  hours " ;

or; more specifically:

⇒ We have "2 hours and _(some) minutes".

→ that is;  " 2 hours plus 0.4 hour(s) " .

 [tex]\frac{(0.4) hr}{1}*\frac{(60)min}{1 hr} = [(0.4)*(60)] minutes[/tex] ;

                              =  24 minutes.

____

Alternate method:
____
(12/5 hours) = (12 ÷ 5) hours =  
" 2.4 hours " ;  (and continue if desired).
____

So:  The correct answer is:  " 2 hours and 24 minutes ";

                                       or; write as:  " 2.4 hours " .

____
Hope this is helpful to you!  Best of luck!

____


Related Questions

please help me with this

Answers

Answer:

32 - 4 = 28 units^2

Step-by-step explanation:

Rectangle area = width x length

4 x 8 = 32

Rectangle minus the missing right triangle.

Triangle area: (base x height)/2

Right triangle = (4 x 2)/2 = 4

I need help please:(((

Answers

Answer:

Okay so for number 16

You have 2 parralel lines with a line through it.

Your trying to find the value of x

You have 2 angles given to you

one is 120 degrees whole the other is 5x+140 degrees.

They are corresponding angles. And now in this case corresponding angles are always equal.

So really all you gotta do is

120=5x+140

Now solve

-20=5x

x= -4

So the first one is x=-4

I can’t really see the other ones but here’s all you need to know

Alternate exterior - Equal

Altenrate interior - Equal

Corresponding - Equal

Interior - Not equal

Exterior-Not equal

Use these to guide you

BRAINLIEST!!! +10 POINTS!!!

Answers

Answer:  3∛3

Step-by-step explanation:

81^(1/3) = ∛(81) = ∛(27 × 3) = 3∛3

help me with this plssssss

Answers

Answer:

7.685 × 10^6

Step-by-step explanation:

1. Match the polynomial with its end behavior.
A. f(x) = -2x + 3
B. f(x) = x2 - 6x + 3
1. As x gets larger and larger in either
the positive or negative direction,
f(x) gets larger and larger in the
positive direction.
C. f(x) = 1 – x2 + 2x3
D.f(x) = 7 - x4
DE
2. As x gets larger and larger in the
positive direction, f(x) gets larger
and larger in the positive direction.
As x gets larger and larger in the
negative direction, f(x) gets larger
and larger in the negative direction.
3. As x gets larger and larger in the
positive direction, f(x) gets larger
and larger in the negative (help please)direction.
As x gets larger and larger in the
negative direction, f(x) gets larger
and larger in the positive direction.
4. As x gets larger and larger in either
the positive or negative direction,
f(x) gets larger and larger in the
negative direction.

Answers

Using limit concepts, the matching pairs are:

A - 3

B - 1

C - 2

D - 4

The end behavior of a function f(x) is given by it's limit as x goes to infinity.

Function A:

[tex]f(x) = -2x + 3[/tex], then:

[tex]\lim_{x \rightarrow -\infty} f(x) = \lim_{x \rightarrow -\infty} -2x = -2(-\infty) = \infty[/tex]

[tex]\lim_{x \rightarrow \infty} f(x) \lim_{x \rightarrow -\infty} -2x = -2(\infty) = -\infty[/tex]

Thus, inverse directions, so matching pair with 3.

Function B:

[tex]f(x) = x^2 - 6x + 3[/tex], then:

[tex]\lim_{x \rightarrow -\infty} f(x) = \lim_{x \rightarrow -\infty} x^2 = (-\infty)^2 = \infty[/tex]

[tex]\lim_{x \rightarrow \infty} f(x) \lim_{x \rightarrow -\infty} x^2 = (\infty)^2 = \infty[/tex]

Always positive, so matching pair with 1.

Function C:

[tex]f(x) = 1 - x^2 + 2x^3[/tex], then:

[tex]\lim_{x \rightarrow -\infty} f(x) = \lim_{x \rightarrow -\infty} 2x^3 = 2(-\infty)^3 = -\infty[/tex]

[tex]\lim_{x \rightarrow \infty} f(x) \lim_{x \rightarrow -\infty} 2x^3 = 2(\infty)^3 = \infty[/tex]

Same directions, thus, matching pair with 2.

Function D:

[tex]f(x) = 7 - x^4[/tex], then:

[tex]\lim_{x \rightarrow -\infty} f(x) = \lim_{x \rightarrow -\infty} -x^4 = -(-\infty)^4 = -\infty[/tex]

[tex]\lim_{x \rightarrow \infty} f(x) \lim_{x \rightarrow -\infty} -x^4 = -(\infty)^4 = -\infty[/tex]

Always negative, so matching pair with 4.

A similar problem is given at https://brainly.com/question/9368215

Solve 5t +2r = 3t+10 for t

Answers

I need to know what to say
Answer:   t = 5 - r

Work Shown:

[tex]5t +2r = 3t+10\\\\5t = 3t+10-2r\\\\5t-3t = 10-2r\\\\2t = 10-2r\\\\t = \frac{10-2r}{2}\\\\t = \frac{10}{2}-\frac{2r}{2}\\\\t = 5-r\\\\[/tex]

CAN SOMEONE ANSWER QUESTION 9??

Answers

Answer:

hii I'll give solution but where

Original: $110
New: $59
%Decrease:__________

Answers

Answer:

46.36%

Step-by-step explanation:

Original: 110

New: 59

Percent Decrease: x

110 - 59 = 51

51/110 ≈ 46.3636... ≈ 46.36%

-Chetan K

Answer:

46.36% or 46% (rounded)

Step-by-step explanation:

110-59=51

Question now: What percent of 110 is 51

Step 1: We make the assumption that 110 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

tep 3: From step 1, it follows that 100%= 110.

Step 4: In the same vein, x%=51.

Step 5: This gives us a pair of simple equations:

100% = 110(1)

x%=51(2)

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

100%/x%=110/51

Step 7: Taking the inverse (or reciprocal) of both sides yields

x%/100%=51/110

⇒=46.36%

The measures of the angles of a triangle are shown in the figure below. Solve for x.
46°
71°
(4X-17)°

Answers

X=20 because 71+46=117 and a triangle angles is equal to 180 so 180-117=63 and 63=4x-17 63+17=80 80=4x

Gordo is a fisherman. Darrin claims that Gordo over-estimates the size of his fish by 25%.
Gordo describes one fish as 40 cm long. What does Darrin claim is the length of Gordo’s
fish?

Answers

Answer:

10 cm long

Step-by-step explanation:

Darrin says that Gordo is wrong by 25% so if Gordo says his fish is 40 cm long then you just have to figure out what is 25% of 40.  

what is the probability that a randomly selected day the flight will depart after 9:11 am
.135
.0235
.0015
.16

Answers

Answer

The awnser is .0235

The probability that a randomly selected day the flight will depart after 9:11 am is 0.0235. The Option B is correct.

What is the likelihood of flights departing after 9:11 am?

The probability of a randomly selected day's flight departing after 9:11 am are determined by analyzing historical flight data. By examining the past departure times, we calculate the proportion of flights that departed after 9:11 am to the total number of flights.

This gives us the probability of a flight departing after that time on any given day. This probability will give us an idea of how often flights tend to depart later in the day. Therefore, the Option B is correct.

Read more about probability

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Convert each fraction to its equivalent using the least common denominator.
1/3 1/4

Answers

I am, honestly, slightly confused by the question wording, so here is what I think you need! :D

We can start by listing multiplies for each:

3:

3, 6, 9, 12, 15, 18, etc

4:

4, 8, 12, 16, 20, 24, etct

We can see that the least common denominator will be 12.

Answer:

[tex]\frac{1}{3}=\frac{x}{12}=\frac{4}{12}[/tex]

[tex]\frac{1}{4} =\frac{x}{12} =\frac{3}{12}[/tex]

If you need to multiply them:

[tex]\frac{4}{12} *\frac{3}{12} = \frac{12}{144} = \frac{1}{12}[/tex]

But you do not need to use a least common denominator for multiplying and can go straight to this:

[tex]\frac{1}{3} *\frac{1}{4} =\frac{1}{12}[/tex]

Hope this helps, have a nice day!  

Brainlyest? I only give it out if the answer is right

Answers

Answer:

c is the correct answer. -1.5(w-5)

#3

how many hours of physical activity are you required to complete to receive credit for the physical education course

Answers

on average, about 150 hours.

REPOST*
Compare -3 and 9. Which of the following is true
A. -3 < 9 and -3 < 9

B. -3 = 9 and -3 < 9

C. -3 > 9 and -3 < 9

D. -3 > 9 and -3 > 9

Answers

Step-by-step explanation:

hshhwhshbevrrjdbslsowmbsnsjzj

sorry for this ..... this is my dear⬆️.......

I need an friend

Find the area of a square with a side of 3^3 m^2 *

Answers

Answer:

3^3 m^2 is area. If it is a square, the sides are 3 each.

Step-by-step explanation:

How do I Evaluate (−9)²

Answers

Answer:

81

Step-by-step explanation:

you evaluate by mutiplying the number with the exponent, which is -9 multiplied by -9, which is 81 because 2 negatives multipled or divided is a positive. hope this helped a bit

Answer:

81

Step-by-step explanation:

Here, some steps to evaluate (-9)².

Step 1 :- A negative base raised to an even powers equal positive.

9 ²

Step 2 :- Write exponentiation as multiplicaton.

9 × 9

Step 3 :- Multiply it .

81

Another way to evaluate ( -9 ) ².

Evaluate by multiply with it's exponent.

-9 × -9

When two negative sign combine they formed positive

So, after multiplying we get 81.

HELP FAST PLS
The function f(x) = x was transformed to create a graph g(x) = f(x+1)+2.
Which statement describes how the graphs of fand g are related?
The graph of F is shifted to the right 1 unit and up 2 units to create the graph of g.
The graph of F is shifted to the right 1 unit and down 2 units to create the graph of g.
The graph of F is shifted to the left 1 unit and up 2 units to create the graph of g.
The graph of F is shifted to the left 1 unit and down 2 units to create the graph of g.

Answers

Answer:

The graph of F is shifted to the left 1 unit and then up 2 units to create the graph of g

Explain how to evaluate
(-9)(-6)(15)(–7 + 7)
as simply as possible.

Answers

Hey there!

(-9)(-6)(15)(-7 + 7)

[-9(-6) = 54]

= 54(15)(-7 + 7)

[54(15) = 810]

= 810(-7 + 7)

[-7 + 7 = 0]

= 810(0)

= 0

Therefore, your answer is: 0

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

[tex](-9)(-6)(15)(–7 + 7)[/tex]

[tex]So \: We \: have,[/tex]

[tex] - 7 + 7[/tex]

[tex] - 7 + 7 = 0[/tex]

Rewriting the original expression,

[tex](-9)(-6)(15)(0)[/tex]

[tex](-9)(-6)(15)(0) = 0[/tex]

[tex]The \: answer \: is \: 0.[/tex]

Pls answer, and quick!! i'll give brainliest

Answers

Part a : scale factor is 3:1
Part b: scale factor would be 1:3

Answer:

see explanation

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original.

A

scale factor = [tex]\frac{3}{9}[/tex] = [tex]\frac{1}{3}[/tex]

B

scale factor = [tex]\frac{9}{3}[/tex] = 3

COULD SOMEONE HELP ME WITH ONE OF THESE PLEASE

Answers

The formula used to solve all three is the pythagorean theorem, aka:
a^2 + b^2 = c^2

a = one of the sides, not hypotenuse
b = the other side, not hypotenuse
c = the hypotenuse (longest side)

9) We need to rearrange the equation, as x is looking for a side other than the hypotenuse. The rearranged formula would be:
a = √(c^2 - b^2)

One of the sides, b, is given as 22. The hypotenuse, c, is given as 37. Plug these numbers into the formula and solve.
a = √(37^2 - 22^2)
a = √(1368 - 484)
a = √884
a = 29.73

x = 29.73

10) Use the same rearranged formula, solving the same way
11) Use the original (not rearranged formula) and solve for the hypotenuse

Someone plz help me :(

Answers

B has a distance of 3 points

LOOK AT PICURE!! WHOEVER IS CORRECT I WILL MARK BRAINIEST!!

Answers

Answer:

i think the answer is90°

Write fraction into decimal

2 3 over 5

2.2
2.4
2.6
2.5

Answers

Step 1: Multiply the whole number by the denominator

2 x 5 = 10Step 2: Add the result of step 1 to the numerator10 + 3 = 13

Step 3: Divide the result of step 2 by the denominator13 ÷ 5 = 2.6

Mark as brainlist ❤️❤️

Hey there!

“2 3 over 5”

= 2 3/5

= 2 × 5 + 3 / 5

= 10 + 3 / 5

= 13 / 5

= 13 ÷ 5

= 2.6

Therefore, your answer is most likely: Option C. 2.6

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Subtract 9x2 – 10x + 1 from —2x2 + 4x – 10.

Answers

11x^2 -6x-9
Step-by-step explanation:
9x^2 - 10x +1 - (-2x^2) + 4x - 10.
The opposite of -2x^2 is 2x^2
9x^2 -10x+1+2x ^2 +4x-10
Combine 9x^2 and 2x^2 to get 11x^2 .
11x^2 -10x+1+4x-10
Combine -10x and 4x to get -6X.
11x^2-6x+1-10
Subtract 10 from 1 to get -9.
11x^2 -6x-9

brainiest??

Find a quadratic function that includes the set of values below.
(0,5), (2.15), (4,9)
The equation of the parabola is y=

Answers

Answer:

there you go . Good luck plz mark me brainliest .

Write an algorithm to solve the problem with long division. Answer in at least 3 complete sentences.​

Answers

Answer:

1) Divide; 2) Multiply; 3) Subtract; 4) Drop down the next digit. Of these steps, #2 and #3 can become difficult and confusing to students

Step-by-step explanation:

7=3 over 4x what is x?

Answers

Answer:

x=28/3

Step-by-step explanation:

combine multiplied terms into a single fraction

7 = 3x/4

multiply all terms by the same value to eliminate fraction denominators

4 · 7 =  4 · 3x/4

cancel multiplied terms that are in the denominator

4 · 7 = 3x

multiply the numbers

28 = 3x

divide both sides of the equation by the same term

28/3 = 3x/3

simplify

a. cancel that are in numerator and denominator

28/3 = x

b. move the variable to the left

x = 28/3

The table below shows data for stuffed animals sold at a zoo gift shop. If the data were represented with a comparative dot plot, which animal would have more dots for month 2 than month 1

Answers

Answer:elephant

Step-by-step explanation:

23x18

Elephant would have more dots for month 2 than month 1. The Option C.

Which animal has more dots in month 2?

Comparing the data for stuffed animals sold at a zoo gift shop in month 1 and month 2 using a comparative dot plot, it is evident that the elephant has a higher number of dots in month 2.

This indicates that more elephant stuffed animals were sold in the second month compared to the first month. The dot plot allows us to visualize the distribution of sales for each animal and easily identify the variations between the two months.

Read more about comparative dot

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solve 13x+5=83 pleaseeee

Answers

13x+5=83
13x=78
So x=6
Other Questions
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