Mathematics High School


Together, two pipes can fill a tank in 3 hours.
One pipe alone can fill the tank in 5 hours.
How long does it take for the other pipe to
fill the tank alone?

Answers

Answer 1

Answer: 7.5 (h)

Step-by-step explanation:

Let say

a the outflow of the first pipe

b the outflow of the second pipe

T the volume of the tank.

x the time for filling with the second pipe

two pipes can fill a tank in 3 hours: a*3+b*3=T

One pipe alone can fill the tank in 5 hours : a*5=T

3*b=T -3a ==> 3b= 5a*3a=2a

b=2a/3

b*x=T ==> 2/3*a*x=T ==> 2/3*T/5*x=T ==> 2/15*x=1

x=15/2 = 7.5 (hours)

Related Questions

What is it simplified?

Answers

Answer:

v² - 4

Step-by-step explanation:

To simplify usually means to reduce something.

So like in this problem all we have to do is reduce...

v^2 - 2^2

v² - 4

Hope this helps :)

1 7/8 cups of ketchup times 3.​

Answers

Answer:

5 5/8 cups of ketchup

Step-by-step explanation:

1 7/8 x 3

15/8 x 3/1 = 45/8

45/8 = 5 5/8

plsss helpppp will mark brainliest!!

Answers

Answer:

D. 2¹⁵/4¹⁰

Step-by-step explanation:

(2³/4²)⁵ = 1/64

A. 2⁸/4⁷ = 1/128

B. 2⁵/4⁴ = 1/16

C. 2⁶/4⁶= 1/128

D. 2¹⁵/4¹⁰= 1/64

SO (2³/4²)⁵ = 2¹⁵/4¹⁰

Convert 120 Ibs to kilograms

Answers

Answer:

54.431 kilograms

Step-by-step explanation:

don't have step by step but 1kg is 2.205lbs

-32.306 + (-24.884) as a decimal.

Answers

-32.306 + (-24.884) = 5719/100 or -57.19

Probability maths Please help

Answers

Answer:

it means maybe or either

Identify the domain of the function shown in the graph.​

Answers

Answer:

C. x is all real numbers.

Step-by-step explanation:

Since the domain is likely infinite, then the domain must be all real numbers so x is all real numbers.

Help pleaseeeeeeeee

Answers

I hope this helps :)

the product of a number and 5

Answers

x • 5 hopefully this is right :)

How do I write this in slope intercept form: (-3,-4) and (4,-3)

PLEASE HELP I NEED IT TONIGHT!!!?!?!!!??

Answers

Slope intercept form is y = mx + b

Pick one of the coordinates, I’ll use (-3,-4) as the example.

Coordinates are just numbers plugged in for (x,y).

This means -3 would be your x and -4 would be your y.

So plug these numbers into the equation and you get -4 = m(-3) + b.

M is slope and to find slope, you need to do (y2-y1) / (x2-x1).

In other words, it would be (-3 - -4) / (4 - -3) = 1/7 which is your slope (m).

Now plug that in for m to get the b variable.

-4 = 1/7(-3) + b.

B = -3.57

Your answer is y = 1/7x -3.57

PLZ HELP (-8x-6)-4 to the 2nd power

Answers

Answer:x=-0.75

Step by step: 4 to 2nd power multiple 4 by 4 you get 16 so (-8x-6)16 multiply 16 to -6 and -8x and so on...

Solve 4x−9y=13 for y

Please help

Answers

Answer: i dont know

Step-by-step explanation: 4

Here is the work

The answer is -1.44 (4 is repeating)

write an equivalent expression (x+2)(x-3) by using the distributive property

Answers

Answer:

x(x-6)

Step-by-step explanation:

(x+2)(x-3)

x^2-3x+2x-6

x^2-x-6

x(x-6)

I need help ASAP plzzzz

Answers

The square
Root of 36 is just six
Square root of 36 is 6. The answer would be choice D. 6x6=36

someone help with this, asap ty.

Answers

Answer:

Still C br-uh

Step-by-step explanation:

The answer would be C. :)

X/3 = -7.x/3 is a fraction

Answers

Lets simplify

[tex]\\ \sf\longmapsto \dfrac{x}{3}=-7.\dfrac{x}{3}[/tex]

[tex]\\ \sf\longmapsto \dfrac{x}{3}=\dfrac{-7x}{3}[/tex]

Cancel x/3

[tex]\\ \sf\longmapsto -7[/tex]

Hence its not a fraction

Please help! Will mark brainliest! ^^

Answers

Answer:

1/8 = 0.125

14/20 = 0.7

2/3 = 0.67

4/5 = 0.8

Step-by-step explanation:

1/8: 0.125


14/20: 0.7


2/3: 0.6 but a slash on top of the six for the repeat sign


4/5; 0.8


1/4: 0.25


7/9: 0.7 put slash on top for repeat sign


Hope this helps *smiles*

I need to know what is the fraction, 2/5 as a decimal?

Answers

Answer:

0.4

Step-by-step explanation:

Answer:

0.4

Step-by-step explanation:

unit rate 18 people in 3 vans​

Answers

Answer:

6:1

Step-by-step explanation:

6 people per van

Answer:

6:1

Step-by-step explanation:

Write the slope-intercept form of the equation of the
line through the given point with the given slope.
10. through: (5, -3), slope -4/5.

Answers

Answer:

y = -4/5x + 1

Step-by-step explanation:

The slope-intercept form:

y = mx + b, where m- slope, b- y-intercept

Use point (5, -3) and m = -4/5:

-3 = -4/5*5 + b-3 = -4 + bb = -3 + 4b = 1

The line is:

y = -4/5x + 1

Answer:

b = 1

Step-by-step explanation:

We know that

y = mx + b

-3 = -4/5 × 5 + b

-3 = -20/5 + b

-3 = -4 + b

-3 + 4 = b

1 = b

Solve the equation:
5 + 4x - 7 = 4x - 3-X

Answers

Answer:

1 = -x

Step-by-step explanation:

group like terms together so

this 5 + 4x - 7 = 4x -3 - x

becomes this 5 - 7 + 3 = 4x -4x -x

then simplify     1 = - x  

Solve the equation. X+3.5 = 10

A.X = 13.5
B. X = 7.5
C. X = 6.5
D. X = 30.5

Answers

Answer:

the answer is C

Step-by-step explanation:

its making write more so yeah

Answer:

x=6.5

Step-by-step explanation:

subtract 3.5 from 10 and it gives you 6.5

:)

Decide!!!!!!!!!!!!!!

Answers

Answer:

547

Step-by-step explanation:

The minute hand hits the 0 minute once each hour. This results each hour to become 61 minutes.

Number of hours from Monday 00:01 to Friday 07:30 is 4*24 + 7.5 = 103.5

Extra time considering defective clock (full hours):

103 minutes = 1 hr and 43 min

Alarm to be set at:

07:30 - 1:43 = 6:00 - 0:13 = 05:47

The answer is:

5*100 + 47 = 547

What is the algebraic expression for the word phrase " the quotient of 24 and 6 less than m”

Please help

Answers

Answer:

[tex]\displaystyle \frac{24}{-6 + m}[/tex]

Step-by-step explanation:

Whichever term is called first represents the numeratour and the leftover represents the denominatour.

I am joyous to assist you at any time.

The expression is 24/ m-6

What is expression?

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division.

An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it. Let us understand how to write expressions. A number is 6 more than half the other number, and the other number is x. This statement is written as x/2 + 6 in a mathematical expression. Mathematical expressions are used to solve complicated puzzles.

Given:

the quotient of 24 and 6 less than m

=24/m-6

Learn more about expression here:

https://brainly.com/question/24416748

#SPJ2

Look at this table:
Is this relation a function?

Answers

Answer:

Yes, because each x-value has a different y-value.

PLEASE HELP WILL MARK BRAINLIEST
Paul graphs the equation y = 24.
Where does his graph intersect the y-axis?
(0,1)
(1,0)
(0,0)
(2,0)

Answers

(0,0)

Step-by-step I took the test

work out b(4½-3⅔)+1⅔​

Answers

Answer:

2 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Change the mixed numbers to improper fractions

([tex]\frac{9}{2}[/tex] - [tex]\frac{11}{3}[/tex] ) + [tex]\frac{5}{3}[/tex] ← the LCM of 2 and 3 is 6

= [tex]\frac{9(3)}{2(3)}[/tex] - [tex]\frac{11(2)}{3(2)}[/tex] + [tex]\frac{5(2)}{3(2)}[/tex]

= [tex]\frac{27}{6}[/tex] - [tex]\frac{22}{6}[/tex] + [tex]\frac{10}{6}[/tex]

= [tex]\frac{5}{6}[/tex] + [tex]\frac{10}{6}[/tex]

= [tex]\frac{15}{6}[/tex]

= [tex]\frac{5}{2}[/tex]

= 2 [tex]\frac{1}{2}[/tex]

Which of these could be the graph of F(x) = In x + 1?

Answers

Answer:

A

Step-by-step explanation:

rlykydlydlysl6sl6sl6dylsl6sl6dlu

pls some help im so stuck im stuck as a cat in a tree dude plz help i
ill give u 100 pointes

Answers

Answer:

It's the positive i, no matter what i is equal to.

f(x)=3|x|
can you answer this question

Answers

(-2,6)
(-1,3)
(0,0)
(1,3)
(2,6)
Other Questions
What are the variables used in an experiment? How are they different? while in milan, da vinci created ____ for milan cathedral dome. select all that apply. Large pieces of the lithosphere that move around on the asthenosphere are called what is infant mortality rate What does the phrase like lambs to slaughter suggest? The slugs waited patiently for death. The slugs had been long dead. The slugs were actively trying to escape. The slugs violently fought each other to live. How do I write 680,705 in expanded form. Hanks pickup can travel 45 miles on 3 gallons of gas. How many gallons will Hanks pickup need to travel 30 miles? Does a fan that is not spinning have energy? why did none of the characters in the poem "the cold within" share there wood Evaluate 3x when x = -8. Why did Kerchak have hostility towards Tarzan Helpppppppppppppppppppp 435 divided by 15 equals what? (please help!)Add 1.25+2.5Plot the first addend and the sum on the number. Maya civilization was possible because agriculture supplied a steady food supply. What is ourcurrent civilization based on? Simplify the following expression:2x 8y + 3x2 + 7y 12xQuestion options:3x2 14x y3x2 10x y3x2 10x 15y3x2 + 10x y State the two laws of electromagnetic induction, and state them. If a fruit fly develops legs on its head instead of antenna, what is the most likely reason?O Chromosomal non-disjunction resulting in extra sets of genesO Conjugation errors during reproductionO Frameshift mutation during transcription of mRNAO Mutation affecting gene expression From memory List the characteristics of life You decide to go cliff diving. You check your apple watch on the top of the cliff and find that you are 52 feet above sea level. When diving into the ocean and get the bottom of the water, you are -27 feet below sea level. Find the difference in the heights.