If Lisa were to paint her living room alone, it would take 3 hours. Her sister Rachel could do the job in 4 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.

Answers

Answer 1

Answer:

12/7 hours

Step-by-step explanation:

Lisa's rate is 1/3 of job per hour

Rachel's rate is 1/4 of job per hour

Their rate if worked together:

1/3 + 1/4 = 4/12 + 3/12 = 7/12 per hour

Job will be done in:

1 : (7/12) = 12/7 hours

Related Questions

Choose the system for the graph

Answers

The answer will be A

it is definitely a this has to be 20 letters so

q(x)= 1/2x - 3; q(x) =-4. Find the value of x

Answers

Answer:

[tex]q(x) =-5[/tex]

Step-by-step explanation:

I am solving this using Function Notation.

We are given:

[tex]q(x)= \frac{1}{2}x - 3[/tex]

While we are to find:

[tex]q(x) =-4[/tex]

In Function Notation, replace all the "[tex]x[/tex]" you see with the value you are given.

So, in this case,

[tex]q(x)= \frac{1}{2}x - 3\\\\=\frac{1}{2}x - 3[/tex]

Would become

[tex]q(x)= \frac{1}{2}x - 3\\\\=\frac{1}{2}(-4) - 3[/tex]

Now we can solve.

[tex]\frac{1}{2}(-4) - 3[/tex]

Use PEMDAS; Parenthesis first;

[tex]\frac{1}{2}(-\frac{4}{1})[/tex]

Cross divide: 1 cancels 1, -4 ÷ 2 = -2

Hence, we are left with

[tex](-2) - 3[/tex]

[tex]-5[/tex]

Therefore, the value of x is -5

At the aquarium there are 1350 sharks and 600 lion fish, for a total of 1950 fish all together. What is the ratio of fish to lion fish?

Answers

Answer:

2.25 Sharks to 1 lion fish

Step-by-step explanation:

1350 sharks / 600 lion fish =2.25

14,406 minus negative
627

Answers

Answer:

15033

Step-by-step explanation:

14,406 -(-627)

Multiply
8.12.30.3

Please help me

Answers

Answer:

8640

Step-by-step explanation:

Emily bought 412 appetizers and she invited 22 people to his party. Use
compatible numbers to estimate the number of appetizers each guest can
have.
OA) 10
OB) 15
OC) 20
OD 25

Answers

The answer is C you just have to divide and then estimate

bill and Andy were racing to see who could run the farthest in 5 minutes bill ran 5/8 of a mile and Andy ran 3/4 of a mile how much farther did andy run than bil​

Answers

Andy ran 1/8 of a mile more than bill
3/4 *2/2=6/8
6/8-5/8=1/8

The sum of a number and 13 is equal to -29. Find the number

Answers

Answer:

-16

Step-by-step explanation:

because -29+13 = -16

and if you add them both you get -29

PLS I NEED HELP!!!! If the base of a rectangle is 9 cm and the area is 112.3 cm2, what is the height of the rectangle? Round your answer to the nearest tenth.

Answers

Answer:

12.5

Step-by-step explanation:

112.3 / 9 = 12.47777......

36 is 70% of what number​

Answers

The answer is 51.43 because 36 is 70 percent of 51.43
36 is 70% of 51.43
1. We have, 70% x x=36
2. Or 70/100x X = 36
3. Multiplying both sides by 100 and dividing both sides by 70,
We have X=36 x 100/70

X = 51.43

Solve for d.

2d = 6 + 3d

p.s the virus bots of brainly your not slick no one is falling for it

Answers

Answer:

D = -6

Step-by-step explanation:

2d= 6 + 3d

Subtract 3d from each side

-d =6

divide by a -1

d = -6

Answer:

d=(-6)

Step-by-step explanation:

2×(-6)=(-12)=6+(3×(-6))

what is the value of x ? A. 4
B. 8
C. 12
D. 16

Answers

Your answer should be 8

Answer:

16 or 12 but I would go with 12

because 16 just kinda flipped me off a little

Step-by-step explanation:

Simplify 20 + 52 × 2.
Question 24 options:


40


90


1,250


70

Answers

Step-by-step explanation:

Simplify:

20 + 52 × 2

=> 20 + 104

=> 124 Ans.

None of these.

Hey there!

20 + 52 × 2

= 72 × 2

= 72 + 72

= 144

Therefore, your answer SHOULD BE: 144

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

z – yx + x; use x = 2, y=-3, and z=4

Answers

Step-by-step explanation:

z-yx+x

4-(-3•2) +2

4-(-6)+2

4+6+2

12

Answer:

12

Step-by-step explanation:

4-(-3)•2+2

4+3•2+2

4+6+2

10+2

12

The scale of a map says that 8 cm represents 5 km. What distance on the map (in centimeters) represents an actual distance of 8 kilometers?

Answers

Answer:

40 cm

Step-by-step explanation:

What is the value of each expression 12 x 1/8 in simplest form?

Answers

Answer:

1 1/2

Step-by-step explanation:

12 x 1/8 =

12/1 x 1/8 =

12/8 =

3/2 =

1 1/2 (1.5)

*At Step #3, 4 goes into both numbers to get 3/2. But, The simplest form is 1 1/2 (1.5)

PLS HELP QUICK
Write an
equivalent expression (simplify): 14h + 12 - 8h - 3

Answers

Answer:

22h - 9

Step-by-step explanation:

14h + 12 - 8h - 3

14h + 8h + 12 - 3

22h + 12 - 3

22h + 9

Please help me as soon as possible!

Answers

Answer:

9.53 AU

Step-by-step explanation:

Can you guys pls Help me on this

Answers

9514 1404 393

Answer:

  a) x > -2

  b) 7 ≤ y

  c) n ≤ 20

  d) g ≥ 19

  e) -5 < w

Step-by-step explanation:

Recognize the following English translations:

  "no more than" means "less than or equal to" (≤)

  "at least" means "greater than or equal to" (≥)

With these translations and the ones shown in your figure, you have ...

  a) x > -2

  b) 7 ≤ y

  c) n ≤ 20

  d) g ≥ 19

  e) -5 < w

find the 21st term of the AP 1,3,5,7,

Answers

Answer:

are you Philippines ty points

Answer:

a₂₁ = 41

Step-by-step explanation:

The nth term of an AP is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 1 and d = a₂ - a₁ = 3 - 1 = 2 , then

a₂₁ = 1 + (20 × 2) = 1 + 40 = 41

Rewrite 2/9 + 5/12 with a common denominator

Answers

8/36 and 15/36,, common factor is 36.

36 divided by 9 times 2 is 8
36 divided by 12 times 5 is 15

A square with 20 meters shown as 12 centimeters, how long would a girder appear 15 meters long?

Answers

9.6 centimeters

EXPLANATION

20 meters = 12 centimeters

15 meters = x

20 meters/12 centimeters = 15 meters/x

20 meters/0,12 meters = 16 meters/x

1666.66 = 16 meters/x

x = 16 meters : 1666.66

x = 0.096 meters

x = 9.6 centimeters

#LearnWithEXO

I NEED HELP WITH THIS MATH PROBLEM!!!!
Which expression is equivalent to 6f-1+7f-8?
13f+7 5f-1
-f+7 or -9+13f

Answers

Answer:

Step-by-step explanation:

6f - 1 + 7f - 8 = 6f + 7f - 1 - 8

                     = 13f - 9

Combine like terms. Like terms have same variable with same power.

Answer:

-9+13f

Step-by-step explanation:

6f+7f = 13f

-1 + -8= -9

So the sum of them is -9+13f

4325 as a product of its prime factors

Answers

Answer:

5*5*173=4325

Step-by-step explanation:

please mark brainiest hope it works out for you

Answer:

5²×173

Step-by-step explanation:

4325 as a product of its prime factors

5²×173

Ms. Parker wants to buy 10 books. Six of them cost $12.50 each, and the rest cost $26.35
each. If she only has $150, how much more does Ms. Parker need to buy all 10 books?

Answers

Answer:

180.4

Step-by-step explanation:

6 times 12.50 is 75

and the rest is 4 and 4 times 26.35 is 105.4

Answer 105.4 + 75 = 180.4

Instructions: Create a table of values for the given function.
Function: f(x) = -4x + 3

Answers

Answer:

Domain: {-2, -1, 0, 1, 2}

Range: {-5, -1, 3, 7, 11}

Step-by-step explanation:

Given the function, f(x) = -4x + 3:

We could simply substitute the given x-values into the function to solve for its corresponding y-values:

x = -2:

f(-2) = -4(-2) + 3

f(-2) = 8 + 3

f(-2) = 11

x = -1:

f(-1) = -4(-1) + 3

f(-1) = 4 + 3

f(-1) = 7

x = 0:

f(0) = -4(0) + 3

f(0) = 0 + 3

f(0) = 3

x = 1:

f( 1 ) = -4( 1 ) + 3

f( 1 ) = -4 + 3

f( 1 ) = -1

x = 2:

f(2) = -4(2) + 3

f(2) = -8 + 3

f(2) = -5

Attached is a screenshot of the table containing the same solution displayed in this post.

15. Enter the missing digit to complete the subtraction statement

2 5 4, 8 1 7
- 1 3 _, 1 2 5
__________
1 1 8, 6 9 2

Answers

254,817 - 118,692 = 136,125. Missing number is 6

Please i need help :(

Answers

Answer:

Distributive property, Inverse Operation, and Division property of Equality

Step-by-step explanation:

Because 8•x is 8x and 8x3 is 24 so then the equation would be 8x-24=-40 then you have to add 24 on both sides to the 8x by itself and also get -16 which you would divide 8 on both sides to get x= -2

.........................

Answers

Step-by-step explanation:

→ (1.2*(10^57)) + 1.2*(10^56)

→ 1.32e+57→ 1.32 × 10^57

1.(drag) → 1.32 and 2. (drag) → 57

» 1.32e+57

00.8 is 10 times greater as

Answers

0.08 x 10 = 0.8 that’s the answer
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