person 1 can do a certain job in 15min, and person 2 can do the same job in 30 min. when completing the job together, which expression would be used to represent the amount of work done by person 1
A. 15
B. 1/15
C. x/15​

Answers

Answer 1

Answer:

I believe the answer is B. 1/15

Step-by-step explanation:

Answer 2

Answer:

B. 1/15

Step-by-step explanation:


Related Questions

help me pls i will do anything

Answers

Answer:

72 ounces.

Step-by-step explanation:

Convert all the fractions to denominator of 24

9/24 4/24 10/24 = 23/24

23/24 = 69/1 so you can cross multiply ( i think)

Then you get 1656 / 23 which equals 72.

If this is wrong I am so sorry

Answer:  72 ounces

===================================================

Explanation:

He uses 3/8 of the amount to make bread, 1/6 of the amount to make pancakes, and 5/12 of the amount to make jam.

Add up those fractions. But first let's make each fraction have the LCD (lowest common denominator) of 24

3/8 = 9/24 .... multiply top and bottom by 3

1/6 = 4/24 .... multiply top and bottom by 4

5/12 = 10/24 .... multiply top and bottom by 2

Now we can add the fractions:

(3/8) + (1/6) + (5/12)

(9/24) + (4/24) + (10/24)

(9+4+10)/24

23/24

So in total, Wayne used up 23/24 of all the blueberries he bought.

Let's make this unknown amount x

x = amount of blueberries he bought, in ounces

Multiplying the sum we got (23/24) by x leads to the amount of blueberries he used, which is 69 ounces

So,

(fraction used)*(amount he bought) = (amount he used)

(23/24)*x = 69

23x = 69*24 .... multiply both sides by 24

23x = 1656

x = 1656/23 ... divide both sides by 23

x = 72

He bought 72 ounces of blueberries.

------------------------------

Let's check that answer

A = 3/8 of 72 = (3/8)*72 = 27 = amount used for bread

B = 1/6 of 72 = (1/6)*72 = 12 = amount used for pancakes

C = 5/12 of 72 = (5/12)*72 = 30 = amount used for jam

A+B+C = 27+12+30 = 69 = total amount used

This confirms our answer.

b. The quotient of f and the quantity of g increased by 11

Answers

Answer:

[tex]\cfrac{f}{g+11}[/tex]

Step-by-step explanation:

We are looking for a fraction with the numerator f and denominator g + 11.

This is:

[tex]\cfrac{f}{g+11}[/tex]

Which of the following distinctions does Russia enjoy?


Question 1 options:


It is the only country in the world with large areas of tundra inside its borders.



It is the northernmost country in the world.



It is by far the largest country in the world.



It has had more kinds of governments in its history than any other country.

Answers

Answer:

A distinctions does Russia enjoy is explained below in details.

Step-by-step explanation:

About 11 percent of Russia is tundra, marshy plain, a treeless The tundra is Russia's northernmost zone.Russia is the world's largest nation by landmass, It comprises nine separate time zones and shares land boundaries with 14 neighboring nations.Russia a federative, democratic, law-based country with a republican model of government. State authority is distributed among the legislative, executive, and judicial divisions.

9. You visit an aquarium. On of the
tanks hold 450 gallons of water. Draw
a diagram to show one possible set of
dimensions of the tank.

Answers

The aquarium would have a volume of 103950 cubic inches. Its dimensions are shown  in the image attached.

What is an aquarium?

An aquarium is a container, often made of glass or acrylic, in which aquatic plants and animals are kept for display or research purposes. It can also be a building or room that houses such tanks.

We have been told that the volume of the water that can be held by the aquarium is 450 gallons of water. If we convert the gallons to cubic inches we would obtain 103950 cubic inches. The dimensions of the aquarium must therefore be such that it would a volume of 103950 cubic inches.

Learn more about aquarium:https://brainly.com/question/6567948

#SPJ1

Solve algebraically ​

Answers

Answer:

n < - 0.6

Step-by-step explanation:

- 4n + 0.3 > 2.7

- 4n > 2.7 - 0.3

- 4n > 2.4

[tex]\frac{-4n}{-4}[/tex] < [tex]\frac{2.4}{-4}[/tex]

n < - 0.6

n ∈ ( - ∞ , - 0.6 )

-4n+0.3 > 2.7

-4n+0.3 -3.2 > 2.7-3.2 (Subtract 0.3 from both sides)

-4n > 2.7 - 0.3

-4n > 2.4

-4n/-4 > 2.4/-4 (Divide both sides by -4)

n > -0.6

~

I need help on this equation!

-4x+3x=2

Answers

Answer: x = -2

Step-by-step explanation: First, add the x values together to get -1x=2, then divide by -1 on both sides to get x = -2.

find to voulme of h=15cm r=5cm

Answers

Answer:

Your answer would be V≈392.7cm³

Step-by-step explanation:

You get this because

Radius= 5cm

Height=15cm

so, V=πr2h

3=π·52·15

3≈392.69908cm³

Hope this helps :).

Answer:

hxr  

=15cm×5cm so the answer is 75cm²

Step-by-step explanation:

the expression 53.7124×103 as a single number

Answers

Answer:

53712.4

Step-by-step explanation:

[tex]53.7124 * 10^{3}[/tex] This is the scientific notation, and since we do not have a negative exponent, we can assume that the decimal is going to move to the right, because when it's negative, the decimal will move to the left, making a smaller number.

So, when we move the decimal 3 times to the right, we find it sitting at 53712.4

The square root of 250a^2 plus the square root of 10a^2 is?

I really need help quickly.
Thank you!!

Answers

Your answer is 6x √10
The answer is 6a root 10

See attached picture for explanation

Round each decimal number to the nearest tenth. Then, select the best estimate for the subtraction equation 1.79 − 0.67 = ___.

Answers

Answer:

1.10

Step-by-step explanation:

1.79

0.67

1.12 rounded is 1.10 to the nearest tenth

58. Graph the function y=x^2+3x-18. How many real roots does the function have?

59. In #58, what value or values of the roots satisfy the function (if any exist)

Answers

9514 1404 393

Answer:

  58. 2 real roots; see attached for a graph

  59. -6, 3

Step-by-step explanation:

58. A graphing calculator graphs this easily. The graph is shown in the attachment. There are 2 x-intercepts, hence 2 real roots.

__

59. The x-intercepts are (-6, 0) and (3, 0), so the x-values x=-6 and x=3 satisfy the equation y = 0.

What I'm doing was correct?

Answers

Answer:

The distance between points R and S is [tex]\sqrt{ 29 }[/tex] units

Step-by-step explanation:

Coordinates of point R = (-1, 3)

Coordinates of point S = (4, 1)

Now, by distance formula:

[tex]d(R, S) = \sqrt{ \{4 -( - 1) \}^{2} + {(1 - 3)}^{2} } \\ \\ = \sqrt{ \{4 + 1 \}^{2} + {( - 2)}^{2} } \\ \\ = \sqrt{ \{5 \}^{2} + {( - 2)}^{2} } \\ \\ = \sqrt{ 25 + 4 } \\ \\ \implies \huge \orange{d(R, S) = \sqrt{ 29 } \: units}[/tex]

So, you are correct.

A minor league baseball pitcher threw 18 strikes in his first 40 pitches for a strike percentage of 45%. He wants to raise this percentage to 60% by throwing a certain number of strikes in a row. To model this, he thought of the rational expression x+18x+40. What does x represent in this expression?

Answers

Answer:

The total number of strikes the pitcher will throw throughout the game.

Step-by-step explanation:

A.The number of consecutive strikes the pitcher must throw to raise his percentage to 60%.

B. The total number of strikes the pitcher will throw throughout the game.

C.The total number of balls the pitcher will throw throughout the game.

D. The number of balls that the pitcher has already thrown.

Given expression:

x+18x+40

In the expression, x represent the total number of strikes the pitcher will throw throughout the game.

The correct answer is A. The total number of strikes the pitcher will throw throughout the game.

Using the BOX PLOT above, what is the Upper Quartile?

Answers

Answer:

Upper Quartile is 16 according to the diagram.

The diameter of a cylinder is 8cm and the height is 2. What is the Volume? (NOTE: V=r2h)

Answers

Step-by-step explanation:

diameter= 8

radius=diameter/2

=8/2

=4

height=2

Volume =r2h

=4*2*2

=16

therefore the volume of the cylinder is 16 cm^3

hope it helps u

pls mark it as the brainliest

Please look at the picture.

Answers

Answer:

J.

Step-by-step explanation:

There is no solution because these are parallel lines.

Parallel lines never intersect and so they have no solution.

can someone help????????????

Answers

Answer:

I believe it is the top right scatterplot, I can't tell which letter, I think B though.

Step-by-step explanation:

If you were to put a line of best fit for each graph, the top right scatterplot would be the only one that has a straight line of best fit.

Hope this helps :)

Answer:

Graph B

Step-by-step explanation:

Because it asked for a LINEAR relationship, and Graph B is the closest graph for a LINEAR relationship.

Hope it helps bro.

what is 244 + 6
pls give me relevent answer

Answers

It’s 250? Or is it not

Answer:                                                                         1

                                                                                     4

244+6=300  [its a simple addition right?]                 3

brainliest?                                                                      J

                                                                                       E

                                                                                       N

                                                                                      <3   :)

16. Rihanna is the founder and CEO of Fenty Beauty on the release day of her new product,
Flyliner Longwear Liquid Eyeliner, she sold 400 eyeliners
and averaged 50 eyeliner sales
per day after that.
Which equation models the number of Flyliner Eyeliners, f, did Rihanna sell after d days.
A. f = 400 + 50d
B. f = 50 + 400d
C. d = 50 + 400f
D. d = 400 + 50f

Answers

Answer:

A. f = 400 + 50d

Step-by-step explanation:

First, let's understand each quantity/variable.

d: The variable, d, represents the number of days.f: f represents the total amount of eyeliners sold after each day.400 eyelines sold: This means that Rihanna sold 400 eyeliners on the first day of the release of her liquid eyeliner. This is known as the y-intercept.50 eyeliner sales per day: This means that after her first day, Rihanna sold 50 eyeliners each day. This can be represented as 50d.  

Now that we understand these variables, we can conclude that the equation would be A. f = 400 + 50d because to find the total, we have to add the 400 eyeliners sold at the beginning to the 50 eyeliner sales per day.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Someone please helpp meeeee?!?!!

Answers

Answer:

Goodluck I had this before and couldn't get it

Answer:

The answer is most likely uniform

Pls help me by answering these :(

Answers

Answer:

1) 21

2a) -23/30

2b) 6/55

Step-by-step explanation:

1) 3(x + 2) + 5x + 7

expand the brackets:

= 3x + 6 + 5x + 7

collect like terms:

= 8x + 13

when x = 1, (just substitute 1 for x)

8(1) + 13

= 8 + 13

= 21

2a)

-9/10 + 2/15

put both fractions on the same denominator (often we can just multiply each denominator by the other one):

so -9/10 * 15/15

= -135/150

and 2/15 * 10/10

= 20/150

now they're both on the same denominator and we can add the numerators:

-135 + 20 = -115

so our answer is:

-115/150

which we can simplify to:

-23/30

2b)

3/11*2/5

Multiplying fractions is very simple, as it doesn't require to have the same denominators. We can just multiply the numerators by each other and same for the denominators:

3*2 = 6

11*5 = 55

therefore, our answer is:

6/55

A)

3(x+2) + 5x + 7

3x + 6 + 5x + 7

3x + 5x + 6 + 7

put x = 1

3(1) + 5(1) + 6 + 7

3 + 5 + 6 + 7

21

B)

a)

[tex]\sf \rightarrow -\dfrac{9}{10} + \dfrac{2}{15}[/tex]

[tex]\sf \rightarrow -\dfrac{9(15)}{150} + \dfrac{2(10)}{150}[/tex]

[tex]\sf \rightarrow -\dfrac{135}{150} + \dfrac{20}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-135+20}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-115}{150}[/tex]

[tex]\sf \rightarrow \dfrac{-23}{30}[/tex]

b)

[tex]\sf \rightarrow \dfrac{3}{11} \ * \ \dfrac{2}{5}[/tex]

[tex]\sf \rightarrow \dfrac{3*2}{11 *5}[/tex]

[tex]\sf \rightarrow \dfrac{6}{55}[/tex]

please answer 12.) quick ! :(

Answers

Answer:

A: $48.53

B: $58.23

Step-by-step explanation:

7% of 45.36 is 3.17.

20% of 48.53 is 9.70.

correct me if i'm wrong. hope this helps. :)

Find the combined volume of the figure

Answers

answer:

12 x 4 = 4 you have to multiply and divide and do math and geometry and to be honest i have no idea what i doing but just pretend like this the answer  

The radius of a circle is 18 yards. What is the circle's area?
Use 3.14 for ​.

Answers

Solution:

We know that:

Radius: 18 yardsπr² = Area of circleπ = 3.14

Finding the area of the circle:

(π)(r²) = Area of circle=> (3.14)(18²) = Area of circle=> (3.14)(324) = Area of circle=> Area of circle = 3.14 x 324 = 1017.36 yards²

[tex] \large{|\underline{\mathbb{\red{G}\blue{I}\orange{V}\pink{E}\blue{N}\purple{}\green{ : }\red{}\blue{}\orange{-}}}}[/tex]

Radius = 18 yards

[tex] \large{|\underline{\mathbb{\red{T}\blue{O }\orange{ \: }\pink{ F}\blue{I}\purple{N}\green{D }\red{ : }\blue{ - }\orange{-}}}}[/tex]

Area of circle

[tex] \underbrace{\mathbb{CALCULATION}}[/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = \pi {r}^{2} [/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 3.14 \times {18}^{2} [/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 3.14 \times 324[/tex]

[tex] \qquad \sf \dashrightarrow \: Area\:of \:circle = 1017.36[/tex]

Thus, The area of the circle is 1017.36 yard²...~

Solve for x
10.2
6.8
round to the nearest tenth

Answers

Answer: 13.8

Step-by-step explanation:

If the value of "y" varies directly with "x"
and y =-8 when x=4.
Find "y" when x =-4.
Please show work if you want a brainiest!!

Answers

[tex]\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]\stackrel{\textit{"y" varies directly with "x"}}{y=kx}\qquad \qquad \textit{we also know that} \begin{cases} y=-8\\ x = 4 \end{cases}\implies -8=k(4) \\\\\\ \cfrac{-8}{4}=k\implies -2=k ~\hfill therefore~\hspace{10em}\boxed{y=-2x} \\\\\\ \textit{when x = -4 what is "y"?}\qquad y=-2(-4)\implies y=8[/tex]

Answer:

y=8

Step-by-step explanation:

I didn't need a equation if they vary directly with each other then if the sign switches from 4 to -4 then -8 must have switched to 8

can any one ☺️ smile

Answers

Answer:

Here is my best smile ☺️

This histogram shows the number of shoppers in various age groups at a clothing store.

How many shoppers are at least 20 years old?


7 shoppers

12 shoppers

13 shoppers

18 shoppers

Answers

At least 7 shoppers are 20 years old

for f(x)=3x+1 and g(x)=x²-6, find (fog)(4).

Answers

Answer:

The answer is 31 hope this helps

i need help in this fast​

Answers

Answer:

D

Step-by-step explanation:

Letter D is the only answer that gets the transformation of triangle ABC correct, since it is the only answer that describes a reflection across line p.

Letter A describes a reflection across the y-axis, which is incorrect because the triangle on the right is farther away from the y-axis than the triangle on the left.

Letter B describes a reflection across the x-axis, which is incorrect because the topmost triangle is farther away from the x-axis than the bottommost triangle.

Letter C once again describes a reflection across the y-axis, which is incorrect for the same reason as to why letter A is incorrect.

Therefore, the answer must be letter D.

The answer is D .........
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