Mathematics High School

cleo can paint a room in 8 hours. while phil can paint the same room in 6 hours. if they paint the room together. how long will it take them to paint the room?

Answers

Answer 1

Answer:

its a fraction so it would be 3 3/7

Step-by-step explanation:

Working together, it will take Cleo and Phil 3

hours to paint the room.

Let x represent the number of hours it will take to paint the room while working together.

__x

1 __x

5 1

24( __x

1 __x

) 5 24(1)

3x 1 4x 5 24

7x 5 24

x 5 ___

or 3__

Related Questions

tha co-efficient of correlation is independent of

Answers

The coefficient of correlation is independent of change of scale and origin of the variable X and Y. Change of origin means some value has been added or subtracted in the observation. If we divide all observations with x then new mean =initial mean/x.

Answer:

change of scale and origin of the variable X and Y.

What is 1.5^3 evaluated or to make it easier to understand if you don't know what 1.5^3 is then it means what is 1.5 to the power of 3 evaluated?

6TH GRADE MATH

Answers

Answer:

3.375

Step-by-step explanation:

2(2x2 + 3) =
Example how you got the answer

Answers

Answer:

Step-by-step explanation:

4x4+6

16+6

=22

Answer:

Step-by-step explanation:

i used pemdas so fist i multiplied 2x2 then added 3 them multiplied 7 with 2 which gets us 14.

Determine whether there is positive, a negative, or
no correlation between weight and IQ as shown in
the chart below.
Weight IQ
150 120
195 110
200 150
230 120
A. No correlation
O B. Positive
O C. Negative

Answers

Answer:

Negative

Step-by-step explanation:

That's the answer........

Answer: C

Step-by-step explanation: I took the test

(C) Write an equation for the amount, a, that Maria makes as a function of the number of hours, h, that she
tutors. Keep in mind that Maria will make $0 for tutoring for 0 hours.

Answers

Answer:

yes

Step-by-step explanation:

yes

Un rectángulo de 72 metros cuadrados de área y 18 m de base ¿Cuánto mide de altura?

Answers

Answer:

Step-by-step explanation:

área = base multiplicada por altura

72 m² = 18 m × altura

Altura = 72/18 = 4 m

What is the sign of 9.(-0.5)?

a: postive
b:negative
c: zero

Answers

Answer:

Negative

Step-by-step explanation:

Answer:

B. Negative

Step-by-step explanation:

Hope it is helpful...

what is 85 in simplest radical form?

Answers

Answer:

=√85 is the simplified radical

how do you find the area of a right triangle if you only have the base

Answers

Step-by-step explanation:

You can find the area of a right triangle the same as you would any other triangle by using the following formula:

A = (1/2)bh, where A is the area of the triangle, b is the length of the base and h is the height of the triangle; However, with a right triangle, it's much more convenient in finding its area if we utilize the lengths of the two legs (the two sides that are shorter than the longest side, the hypotenuse and that are perpendicular to each other and thus form the right angle of the right triangle), that is, since the two legs of a right triangle are perpendicular to each other, when we treat one leg as the base, then, consequently, we can automatically treat the length of the other leg as the height, and if we initially know the lengths of both legs, then we can then just plug this information directly into the area formula for a triangle to find the area A of the right triangle.

For example: Find the area of a right triangle whose legs have lengths of 3 in. and 4 in.

Make the 4 in. leg the base. Since the two legs of a right triangle are perpendicular to each other, then the length of the other leg is automatically the height of the triangle; therefore, plugging this information into the formula for the area of a triangle, we have:

A = (1/2)bh

= (1/2)(4 in.)(3 in.)

= (1/2)(12 in.²)

A = 6 in.² (note: in.² means square inches)

Find the percent change. Tell whether it is a percent increase or decrease.
from 84 to 63

A. 25% decrease
B. 33% increase
C. 25% increase
D. 33% decrease

Answers

It would probably be A

someone please help me ASAP!!!!!!! Show work pleaseeeee

Answers

Answer:

Step-by-step explanation:

[tex]6^{2} +2^{2} =c^{2} \\36+4=c^{2} \\40=c^{2} \\\sqrt{40} =c\\c=6.32[/tex]

Answer:

Square root of 40, I don't know what the brace is

Step-by-step explanation:

To find side c, you have to use the Pythagorean theorem. A^2+B^2=C^2. In this case A and B are 6 and 2. This means the equation would be 6^2+2^2=C^2. Simplify this to get 36+4=C^2. Add 36 and 4 to get 40. 40=C^2. This would mean that it is square root of 40.

To solve the inequality 4x < 8, you would divide both sides of the inequality by 4.

True
False

Answers

Answer:

True

Step-by-step explanation:

4x<8

divide

x<2

1 hour 20 mins = _____ seconds
Plz help me

Answers

Answer:

4800

Step-by-step explanation:

multiply the time value by 3600

A school has all of the students in grade 8 take a math test. Several samples are taken from the results. Which of the following samples is NOT likely to produce a representative sample of the population?

Answers

917.8
step by step
sisbeuejebusnanakaiajrbrv

I tried one and got it wrong so I need help again please ☹️

Answers

Answer: 45/11

Step-by-step explanation: You would do 5/1 then 9/11 times that which is 45/11

The answer would be 45/11 or as a mixed number 4 1/11

because, you would times 9/11 by 5/1 and that would get 45/11.

10. Determine the value of x.(its trig)

Answers

Answer:

whats the equation?

Step-by-step explanation:

PLS HELP ASAP I ONLY GOT 15 MIN LEFTTT

Answers

Answer: b

Step-by-step explanation:

a. 2 - 4 x 6 + 8 + 2 =
b. 6 + 2 x 4 - 8 + 10 =

Answers

The answer would be

A.) ~-12~

because 2-24=-22 -22+8+2=-12

B.)~16~

because 6+8-8+10 and -8+8=0 so 6+10=16

Hope this helps

Have a great day/night

Feel free to ask any questions

Sam needs a web designer. Designer A is offering her services for an initial $550 in addition to $105 per hour. Designer B is offering her services for an initial $660 in addition to $50 per hour. When will the two designers charge the same amount of money?

The two designers will charge the same amount of money after
hours

Answers

After two hours the prices will meet a 760

$550+105=655 |655+105= 760

660+50= 710 |710+50= 760

They meet in the second hour so in the second hour they will charge the same.

20. Given the area, find the side length.

Answers

Answer:

Step-by-step explanation:

Area of a square = 49a⁸b¹⁰

Side = √49a⁸b¹⁰

= √7²*(a⁴)²*(b⁵)²

= (7a⁴b⁵)²

Side = 7a⁴b⁵

What is the solution to the equation 2x + 4 = 23x?

Answers

Answer:

i think its 2

Step-by-step explanation:

63° 55°
X =
degrees.

Answers

Answer:

Step-by-step explanation:

The sum of these angles must equal 360 degrees.

x+63+55=360

x+118=360

x=242

Clare has 54$ in her bank account. A store credits her account with a 10$ refund. How much does she now have in the bank?

Answers

Clare now has $64 in her bank account.

54 + 10 = 64

A person is looking from a car to the top of a building. The angle of elevation to the top of the building from the car is 32°. The building is 200 feet away. How tall is the building? Round to the nearest foot.

Answers

i truly don’t know the answer but i think it is 837 feet

Determine the 10th term of the sequence –17, -13,-9, ...
A. 19
B. -53
C. 36
D. 53

Answers

Answer:

-53 (answer : B)

Step-by-step explanation:

hello :

this the arithmetic sequence because :

(-9)-(-13)=(-13)-(-17)= 4 (common difference)

the first term is : A1 = -17

the nth term of an arithmetic sequence is :

An= A1 +(n-1)d ....a common difference is : d

the 10th term is : A10

A10= -17 +(10-1)(4) = -17-36 = -53 (answer : B)

Can this be reduced?

Answers

This answer is 2/11
I used my brain lol !!!

help me with this pleas w

Answers

Answer: 8

Step-by-step explanation:

4x8= 32

32x8= 256

256x8= 2048

A custom t-shirt company charges a $200 setup fee and $5 per t-shirt. Write an equation that can be used to determine how many t-shirts must be produced so that the total cost per t-shirt is $5.33?

A. (200+5x)/x =5.33
B. (200/x) +x = 5.33
C (200) + 5/x = 5.33
200 + 5x = 5.33/x

Answers

A. (200+5x)/x =5.33 I think I don’t know

Answer:

its a

plz brainlest

Step-by-step explanation:

Please Help give me an A

Answers

What are your answers? And btw kinda cute

Write an equation of a like that passes through the points (9,5) and (6,7)

Answers

Answer:

y=-2/3x+11

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-5)/(6-9)

m=2/-3

m=-2/3

y-y1=m(x-x1)

y-5=-2/3(x-9)

y=-2/3x+18/3+5

y=-2/3x+6+5

y=-2/3x+11

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