1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lisabon 2012 [21]
3 years ago
8

X/30 + X/40= 1 Solve for x

Mathematics
2 answers:
Svetllana [295]3 years ago
4 0

Answer:

17 1/7 I think

Step-by-step explanation:

slega [8]3 years ago
4 0

x=17.1

Step-by-step explanation:

\frac{x}{30}  +  \frac{x}{40}  = 1 \\  \frac{3x + 4x}{120}  = 1 \\  \frac{7x}{120}  = 1 \\  \frac{7x}{120} = 1 \\ 7x = 120 \\ x =  \frac{120}{7}   \\ x =17.1

You might be interested in
A 300-lb gorilla climbs a tree to a height of 30 ft. Find the work done if the gorilla reaches that height in the following time
omeli [17]

Answer:

a) 9000 ft-lb

b) 9000 ft-lb

Step-by-step explanation:

Equation for the work:

The equation for the work done is given by:

W = Fd

In which F is the force needed and d is the distance. The time does not interfere on the work.

A 300-lb gorilla climbs a tree to a height of 30 ft

This means that F = 300, h = 30

Thus

W = Fd = 300(30) = 9000

The work done in both cases is of 9000 ft-lb, as the work is not a function of time.

4 0
3 years ago
Will give brainly
ad-work [718]

Answer:

The wheels have to rotate 500 times

Step-by-step explanation:

The wheel is 1 meter in diameter so we need to find the circumference.

C = 2\pir

C = 2\pi1

C= 2\pi

2meters = .002kilometers

1000meters = 1kilometer

1000/2 = 500

6 0
3 years ago
Please help me with this math problem, it has fractions.
viktelen [127]

Answer:

if you multiply two negatives together, then the answer is positive, so -1/4 of -4 is just 4 / 4 which is 1

5 0
3 years ago
PLEASE HELP and Show your work please!!
bazaltina [42]

9514 1404 393

Answer:

  2)  3 pages per hour

  3)  4/29 km per minute

Step-by-step explanation:

Division by a fraction is the same as multiplication by the inverse of that fraction.

<h3>2) </h3>

  \dfrac{\ \dfrac{9}{4}\ }{\dfrac{3}{4}}=\dfrac{9}{4}\times\dfrac{4}{3}=\dfrac{36}{12}=\boxed{3\text{ pages per hour}}

__

<h3>3) </h3>

  \dfrac{2\text{ km}}{\dfrac{29}{2}\text{ min}}=2\times\dfrac{2}{29}\text{ km/min}=\boxed{\dfrac{4}{29}\text{ km/min}}

8 0
3 years ago
141/56 as a mixed number
elixir [45]
I believe its 2 and 1/2


I'm so sorry if its not but I would guess it is :)
6 0
4 years ago
Read 2 more answers
Other questions:
  • A six sided die is rolled four times what’s the probability of rolling a 4 only on the last toll
    5·1 answer
  • The path of a rocket ship is given by the parametric equations x(t)=3t and y(t)=4t^2+1, where t is the time in seconds after lau
    14·2 answers
  • How a bar model can be used to show a subtraction problem? 2 grade
    6·2 answers
  • Find the missing endpoint if s is the midpoint of rt r(-9,4) and s(2,-1) ; find T
    10·2 answers
  • 7 less than -2 times a number x is greater than or equal to 41 write a inequality for the statement above and find out a solutio
    15·1 answer
  • Combining like terms with rational coefficients <br> 7/8m+9/10-2m-3/5
    12·1 answer
  • If one acute angle of a right triangle measure 37 what's the measure of the other acute angle
    7·1 answer
  • Fairview auto repair originally paid its mechanics $20 per hour. Now that there is a new owner, the mechanics make 5% less. How
    12·1 answer
  • What is the measure of CED
    15·2 answers
  • SOMEONE PLEASE HELP Me . My child doesn’t understand this MaTh and THeY really need help. Take this seriously bc we really reall
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!