Mathematics High School

HELP!!!!
4. Jake can paint a room in 7 hours, and Karen can paint the same room in 5
hours. How long will it take to paint the room if they work together?

Answers

Answer 1

Answer:

6 hours

Step-by-step explanation:

( 7h + 5h)/2 =6h

Answer 2

ANSWER:

It would take them about 3 hours to paint the room together.

EXPLANATION:

The least common denominator of 7 and 5 would be 35, so if we set 7x+5x equal to 35, the answer rounds up to 3. (or 2.9 if rounded to the nearest tenth.)

Related Questions

I don’t understand this please help

Answers

Answer:

Step-by-step explanation:

I would love to answer you but there are no questions.

Due to erosion, a beach is
disappearing at a rate of -5 feet
per year. How long will it take for
the beach to lose 85 feet

Answers

Answer:

17 years

Step-by-step explanation:

do 85 divided by 5

Answer:

17 years

Step-by-step explanation:

-5 feet = 1 year

To do this you would do:

85 ÷ 5 = 17 years

Hope this helps!

helpppppppppppppppp

Answers

Answer:

f(5) = -11

Step-by-step explanation:

Given that,

f(x) = 4-3x ....(1)

We need to find the value of f(5).

Put x = 5 in equation (1)

f(5) = 4-3(5)

= 4-15

= -11

So, the value of f(5) is equal to -11.

what is the perimeter?

Answers

Answer:

14

Step-by-step explanation:

because the side length are 5 and 5 and 4 which is 14.

plz mark the brainliest

A football coach moves 12 m north, then 16 m south, then 22 m north, and finally 6 m
south.
What is the displacement

Answers

Answer: Displacement=12 m north

Step-by-step explanation:

12 m north

Let’s assume

north= positive

south=negative

12+(-16)+22+(-6)=12

pls help with #5 i’ll be giving a brainliest

Answers

Answer:

1, 3, 4

Step-by-step explanation:

The first, third, and fourth choices are all functions. The reason the second choice is not a function is that input 1 has multiple outputs.

Type the correct answer in the box. Use numerals instead of words. I
Find the missing term.

That right?

Answers

Answer:

no

Step-by-step explanation:

An artist is asked to scale up a model of Pluto to 3 times its original size. If the original model of Pluto has a radius of 12 cm, what is the volume of the new model?

Answers

Answer:

72

Step-by-step explanation:

24 times 3 is 72

Answer:

The volume of the new model of Pluto is 195,432.20 cm^3

Step-by-step explanation:

new radius: 12 * 3 = 36 cm

volume: V=4/3 * π * r^3

volume of new mode is 195,432.20 cm^3

Necesito ayuda con esto :(

Answers

Yo creo que es una ecuación lineal

Actually help pls people have been typing random stuff

Answers

Answer:

reading, chores, and then homework

Step-by-step explanation:

just accept it

Read, chores, hw (last option)

Which of the following shapes are squares ? Please choose 2 correct answers !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

Answers

Answer:

B,D

Step-by-step explanation:

Answer:

Hello again! Your answer would be B and D

Step-by-step explanation:

A square is a shape with 4 sides and all of them have to equal. Right away you can see that D is without needing to look at it. You might think that B is not because of its angle but if you turn your paper/computer to the side a bit you can there see that it is square. C and A are not because of their unequal sides. Yes, they do have four sides but they are non-equal.

Which describes the slope of the line in the graph?
A)
zero
B)
positive
C)
negative
D)
undefined

Answers

Answer:

3

Step-by-step explanation:

Answer: A
The slope of the line is zero

3. What is the sum of the interior angles of a polygon with 32 sides?

Answers

Answer:

Step-by-step explanation:

To find the sum of an interior angle of a polygon, you have to follow these steps:

Interior angle= ( n - 2 ) ×180° all over n

So interior = ( 32 - 2 ) × 180° all over 32

Interior = 30 × 180 all over 32

Therefore your interior angle should be 168.75°

please help ssssssssss
​

Answers

the answer would be x = 1

Answer:

x = 1

Step-by-step explanation:

1/2(8x-6) = -1/3(9x-12)   distribute

4x-3 = -3x+4                 add 3x to both sides

7x-3 = 4                        add 3 to both sides

7x = 7                            divide by 7 on both sides

x = 1

Calculate the slope of the line.Please help!!

Answers

the slope is 2/3 you’re welcome :)

Rykers’ regular pay rate is $11.97 an hour. He is paid time-and-a-half for hours worked over 40 hours in a week, including weekend work. He worked these hours from Monday through Saturday last week: 10.25, 6.25, 9.25, 12, 12.25, 6.25. What was his gross pay for the week?

Answers

Answer:

$770.65

Step-by-step explanation:

11.97/2=5.985

5.985+11.97=17.96

16.25 x 17.96=291.85

40 x 11.97=478.80

478.80+291.85=770.65

Find the slope of the following graph.

a) -1/8
b) 1/8
c) -8

Answers

-1/8, solve by plotting 2 points and dividing rise by run

4.28 ounces - 4.82 ounces-2.85 ounces

Answers

Answer:

-3.39 is your answer

Step-by-step explanation:

what is the Riemann hypothesis

Answers

in mathematics, the Riemann hypothesis is a conjecture that the Riemann zeta function has its zeros only at the negative even integers and complex numbers with real part
1
/
2
. Many consider it to be the most important unsolved problem in pure mathematics (Bombieri 2000). It is of great interest in number theory because it implies results about the distribution of prime numbers. It was proposed by Bernhard Riemann (1859), after whom it is named.

Answer:

What is the Riemann hypothesis simply explained?

The Riemann hypothesis asks if every non-trivial root (white dot) would be on the line down the middle. If the answer is no, we say the "hypothesis is false". This would mean that there are white dots which are not on the line given.

Please vote 4 BRAINLIEST


ASAPI NEED THIS NOWWW

Answers

Answer:

It is J

Step-by-step explanation: 19.5 times 7 is 136.5

It is J, I literally had this for hw today lol

1 free pass to heaven if you help and get it right

Answers

Grow between years 3 and 4. Amount was 8 (24.24%)

Answer:

Year 3 and year 4 and the percentage is 8%

Step-by-step explanation:

Because it grown by 8

What is the solution to the inequality?
12 < 8 + x

A. X> 4

B. x < 20

C. x<4

D. x>20

Answers

Answer:

[tex]12 < 8 + x \\ 12 - 8 < x \\ 4 < x \\ \boxed{ x > 4}✓[/tex]

A. x>4 is the right answer.

Calculate X and leave your answer to 3 significant figures.

Answers

Answer:

x=9.23

Step-by-step explanation:

Zy=x

Yx=11

Tan40=x/11

11tan40=x

11x0.8391

x=9.23

Find the surface area of the figure below. Each cube measures 1 inch.
Select the best answer from the choices provided.
OA. 52 in2
OB. 33 in?
OC. 24 in?
OD. 58 in2

Answers

Your answer would be OA. You would use the equation SA= 2(wl+hl+hw). You would then plug in your length width and height to then give you to eventually get you the answer 52.

Given: f(x) = x - 7 and h(x) = 2x + 3
Write the rule for f(h(x)).

Answers

Answer:

f(h(x))= 2x-4

Step-by-step explanation:

f(h(x))=f(2x+3)=2x+3-7= 2x-4

Evaluate if a = 6.
a + a? =

Answers

Step-by-step explanation:

if a=6

a+a=12

cause 6×2=12

:)

Hey there!

a + a

= 6 + 6

Start at 6 and go UP 6 spaces to the RIGHT. Then the answer should be the number that you have stopped on.
= 12


Therefore, the answer should be: 12


Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

PLEASE PLEASE I NEED HELP

Answers

1. 26
2. 42
(Sorry if I’m off I’m going off of 2 hours of sleep lol)

Answer:

1. 20

2. 34

Step-by-step explanation:

Jamal reads every day. He read 55 pages on Tuesday, which is 25% less than what he read on Monday. How many total pages did Jamal read on Monday and Tuesday? Write solution as a mixed number

Answers

35 is the answerrrrrrrrr

Answer:

68/.75

Step-by-step explanation:

Answer these two easy questions i give out brainlest

Answers

Answer: 1) true 2) false

Which of the following shows -7(4 + y) rewritten using the Distributive
Property?
0 -35y
O -11 -7y
O -28 - 7y
-28 + 7y

Answers

The third choice is answer
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