Mathematics High School

It takes 12 men 5 days to complete a job.
(a) Workout how many days it would take 3 men to complete the same job.
(2 marks)

Answers

Answer 1

Answer:

20

Step-by-step explanation:

1/(12*5)=1/(3*x)

12*5=3x

x=20

Related Questions

(help pls) Determine the domain of the function, and choose the correct interval and inequality notations. f(x) = 1/2x + 8

Answers

Not sure what inequality notation is since I’m French but here’s the domain interval

Answer:

INTERVAL NOTATION: (-4)  (-4) -- (BOTH ARE -4)

INEQUALITY:  >-4 OR X<-4

Step-by-step explanation:

Which is the best estimate of the mass of a skateboard
A 3 liters
B 3 kilograms
C 30 grams
D 3 grams

Answers

Probably B, 3 kilograms. Since grams are too small, and liters isn’t measuring mass, kilograms is the best choice.

Can someone solve this?

Answers

Answer:

[tex]y = \frac{1}{9} x + 3\frac{1}{3}[/tex]

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Answer:

y=1/9x+10/3

Explanation:

Find the negative reciprocal of the slope of the original line and use the point-slope formula  to find the line perpendicular to  y = − 9 x − 4 .

I have to find the value of X in -3.8 - 13.4x = 460.606 ​

Answers

I hope this helped you!


3. Find the value of x and the measure of the missing angle in the
figure below.
66°
(4x - 4)^

Answers

Answer:

7

Step-by-step explanation:

66+(4x-4)=90

66+4x-4=90

62+4x. =90

4x. =28

x. =7

Can someone please help me? I’ll give Brainliest!

The graph of the invertible function f is shown on the grid below.

Answers

Answer:

y= -2x+3

Step-by-step explanation:

the y intercept is 3 and it is decreasing by 2 so it is -2

Answer:

here

Step-by-step explanation:

find the common ratio of the geometric sequence -13, 117, -1053

Answers

Answer: -9

Step-by-step explanation: 117 divided by -13 = -9

-1053 divided by 117 = -9

common ratio=-9

Find the minimum and maximum possible areas for rectangles with the following measured areas.


12 km × 5 km


A.
51.75 km2, 66 km2


B.
57.5 km2, 68.75 km2


C.
51.75 km2, 68.75 km2

Answers

Answer:

I believe it's B correct me if I'm wrong

Answer:

C.    51.75 km2, 68.75 km2

Step-by-step explanation:

Helppp me plzzzzz!!!!

Answers

Answer:

A.

Step-by-step explanation:

By exterior angle theorem:

[tex]60 \degree + 2x \degree = 94 \degree \\ \\ 2x \degree = 94 \degree - 60 \degree\\ \\ 2x \degree = 34 \degree \\ \\ 2x = 34 \\ \\ x = \frac{34}{2} \\ \\ = 17[/tex]

HELP WILL MARK BRAINLIEST

Answers

Answer:

ineedpointssorrry

Step-by-step explanation:

A baseball fits snugly inside a transparent display cube. The length of an edge of the cube is 2.9 inches.
Is the baseball’s volume greater than, less than, or equal to cubic inches? Explain how you know.




1. A cube’s volume is 512 cubic units. What is the length of its edge?



2. If a sphere fits snugly inside this cube, what is its volume?



3. What fraction of the cube is taken up by the sphere? What percentage is this? Explain or show your reasoning.

Answers

Answer:

hi

Step-by-step explanation:

hi

The local movie theater has tickets at $8.75. If the theater made $78.75 dollars. How many tickets did it sell?

Answers

Answer:

The theater sold 9 tickets just multiple 8.75 by 9 and you'll get 78.75

Find the sum of

(9c+8)+(5x-2)+(3y+7)

Answers

Answer:

9c + 5x + 3y + 13

Step-by-step explanation:

you can't combine any of the numbers wwith variables because the variables aren't the same but you can combine the other numbers (8, -2, 7)

8 - 2 = 6

6 + 7 = 13

put the equation back together but instead replace the 8, -2, and 7 with 13 giving you

9c + 5x + 3y +13

Please help ASAP! My parents are gonna kill me if I don’t pass this

Answers

Answer:

a ) 1 and 2

b ) less then 1

c ) less then 1

d ) less then 1

e ) 1 and 2

Step-by-step explanation:

Suppose the fishing spot where kimi Werner goes spear fishing has an area of 946 square yards .If the fishing spot is 43 yards long, how wide is the fishing spot

Answers

Answer:

22 yards

Step-by-step explanation:

..

Find the missing side. Round to the nearest tenth.

Answers

Answer:

29.9

Step-by-step explanation:

29.9 rounded to the nearest 10 is 30

what is the y-intercept? B =

​

Answers

Answer:

60

Step-by-step explanation:

Since when x = 0 the corresponding value of y is 60. So, y-intercept (b) = 60

Please help thank you

Answers

Answer:

x=25

Step-by-step explanation:

180-113=67

67-42 = 25

X=25 hope this helps you

Find the measure of angle x.
A.33
B.40
C.45
D.57

Answers

Answer:

A) 33 is answer is sure and fix

Step-by-step explanation:

answer of this qn is 33 option A

a stock rose 3 1/4 points on tuesday. it fell 1 3/4 on wednesday. on thursday the stock rose 4 1/8 points. by friday the stock was worth 28 1/2 points. how much was the on monday?

please help

Answers

Answer:

big 3/2 is right

Step-by-step explanation:

Sage and Tom started the month with the same number of talk minutes on their cell phones. Sage talked for 7 minutes with her dad. Tom talked for 4 minutes with a friend and 3 more minutes with his mom. Do Sage and Tom have the same number of talk minutes left on their cell phone plans? Write an algebraic expression to represent the number of minutes Tom has left. Question 1

Answers

Answer:

a. Sage and Tom have the same number of talk minutes left on their cell phone plans.

b. y = x - 7

Explanation:

Sage talked for 7 minutes with her dad.

Tom talked for 4 minutes with a friend and 3 more minutes with his mom which means he spoke for :

= 4 + 3

= 7 minutes

They both spoke for 7 minutes and therefore have the same amount of time left.

Algebraic expression:

Assuming the time Tom started with is denoted by x and the time he is left with is denoted by y.

The expression is:

y = x - 7

helllllpppp the question is down here vvvv:

Answers

Answer:

Hope this helps

Step-by-step explanation:

I believe the ¨Five less than twice a number" is

[tex]2x-5[/tex]

¨Five times the sum of two numbers¨

[tex]5(x+y)[/tex]

¨The difference of 5 and a number squared¨

[tex](5-x)^{2}[/tex]

Answer:

First Box is:  5 - 2x

Second Box is: 5(x + y)

Third Box is: (5 - x)²

Step-by-step explanation:

The First one said "Five less than twice a number"

It said Five less than, meaning 5 (subtract)Twice mean 2 and a number means a VARIABLE. Answer: 5 - 2x

The second one said "Five times the sum of two numbers"

Five times means 5 (multiplication)Sum means adding and two numbers means two variables.Answer: 5(x + y)

The thrird one said "The difference of 5 and a number, squared"

The difference means subtracting of 5a number means a variablesquared, means an exponent of 2Answer: (5 - x)²

All of these answers seems to fit the descriptions.

Find the percent of change. Round to the nearest tenth, if necessary.

There were 795 runners registered for the marathon in 2015 and 1,208 in 2016.

PLLLLLEEEEEEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAASSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSEWEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

51.9% increase

Answer:

The answer would be: 51.9% increase

Step-by-step explanation:

Have a blessed day

Find the area of the SHADED region.

Answers

Split the shape into two shapes

A square

Area = L x H = 20 x 21 = 240 cm2

A right angle triangle


Area of right angle triangle = L x H divided by 2

20 x 21 = 240 divided by 2 = 120 cm2

Add both areas

240 + 120 = 360 cm2


helpppppp someone please​

Answers

Answer:

x=22/5

Step-by-step explanation:

multiply by 3 on both sides

7+x=6x-15

x=6x-22

-5x=-22

*-1 on both sides

5x=22

x=22/5

It’s really easy but I don’t know the steps can someone help?

Answers

Answer:

x=0

Step-by-step explanation:

1/2(40+2x)=20

20+x=20

x=0

(I believe that s is the bisector, please correct me if I am wrong)

Hurry!! Worth 10 points

Answers

Answer:

its D

Step-by-step explanation:

A town is debating whether to put in curbs along the streets. The ratio of town residents who support putting in curbs to those who oppose it is 2 to 5 what percent of the residents oppose putting in curbs

Answers

Answer:

71.4%

Step-by-step explanation:

The total residents is (5+2) = 7

Those that oppose are 5÷7

5÷7 = 0.714 = 71.4 %

the sum of a number and 7 is -12

Answers

Answer:

Please put the rest of the answer

Step-by-step explanation:

Answer: 7?

Step-by-step explanation:

Dana is planning to drive 400 miles from
New York to Boston and back. Dana's
hybrid car can travel 50 miles on 1 gallon
of fuel. Biodiesel fuel costs $4.45 per
gallon.
Part A: How many gallons of fuel does
Dana need to purchase for the 400-mile
trip? Explain your reasoning.
Part B: Dana can take a high-speed train
to Boston instead of driving. A round-trip
train ticket costs $95. Is it cheaper for
Dana to take the train or to drive? How
much cheaper? Explain your reasoning.

Answers

Answer:

A. 8 gallons

B. Drive by car is $59.4 cheaper than travel by train

Step-by-step explanation:

According to the scenario, given data are as follows,

Total drive = 400 miles

Total drive per gallon = 50 miles

Fuel cost per gallon = $4.45

A. So, Total fuel required to drive 400 miles can be calculated as follows,

Total fuel required =  Total drive ÷ Total drive per gallon

By putting value, we get,

Total fuel required = 400 ÷ 50

= 8 gallons

B. Total cost if drive by car = 8 gallons × $4.45 = $35.6

Cost if travel by train = $95

Hence it is clearly shows that drive by car is much cheaper than travel by train.

Cost saved by travel by car = $95 - $35.6 = $59.4

So, drive by car is $59.4 cheaper than travel by train.

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