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
aliya0001 [1]
3 years ago
8

Three numbers are in the ratio 2:3:5. If the sum of their cubes is 1280.Find the three numbers.

Mathematics
1 answer:
Charra [1.4K]3 years ago
3 0

Answer:256,384,640

Step-by-step explanation:

Take the ration sum 2x+3x+5x=1280

When we add we get 10x=1280

Then find x by. x=1280/10=128

Then substitute this x value to the ratios 2x=2*128 =256

3x=3*128=384

5x=5*128=640

You might be interested in
I have dyscalculia and I hate math. I am absolutely confused about multi step equations with fractions.
Galina-37 [17]

Answer:

If you have *dyslexia, then how do you know how to spell so well?

Step-by-step explanation:

7 0
2 years ago
Can you help me with this problem
alex41 [277]

I think its 8 because 64 divided by 8 is 8.


3 0
3 years ago
We need help solving problem 5.
maksim [4K]

can I get a better picture? please

8 0
3 years ago
Which of the following is a solution of the system 2x + y = 9 and 3x + 5y = 19.​
Nezavi [6.7K]

2x+y=9

3x+5y=19

I will do this problem in 2 ways. I.)Substitution II.)Elimination

Solution I.) Substitution

We can subtract 2x from both sides in the first equation.

y=9-2x

Now we can substitute the y in the second equation with 9-2x

3x+5(9-2x)=19

-7x+45=19

-7x=-26

x=26/7

y=9-2(26/7)=11/7

Solution II.)Elimination

We can multiply both side of first equation by 5 to get a 5y in both equations.

10x+5y=45

Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.

(10x+5y)-(3x+5y)=45-19

7x=26

x=26/7

2*26/7+y=9

y=11/7

Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.

4 0
2 years ago
Need help with this plz
gogolik [260]

Answer:

x =  \frac{ - 24 \pm \sqrt{ - 288} }{4}  \\  =  \frac{ - 24 \pm \sqrt{ ( - 1) {(12)}^{2} (2)} }{4} \\  =   \frac{ - 24 \pm \sqrt{ - 1}  \sqrt{ {12}^{2} } \sqrt{2}  }{4} \\  =   \frac{ - 24 \pm i 12\sqrt{2}  }{4} \\  =-\frac{24}{4}\pm \frac{i12\sqrt{2}}{4}\\=  -  6  \pm \: i3 \sqrt{2}

3 0
2 years ago
Other questions:
  • Circle A with center (4, 0) and radius 5 is similar to circle B with center (–6, –3) and radius 3.
    15·2 answers
  • What is the ratio of the two quantities? Warning: different units! a 4 seconds to 2 min
    6·1 answer
  • Without calculating any other co-ordinates, give the x-intercepts (roots), y-intercept, and turning point of the graph y=2x^2-5x
    9·1 answer
  • Solve for x. will give brainlkest
    12·1 answer
  • Laura can weed the garden in 1 hour and 20 minutes and her husband can weed it in 1 hour and 30 minutes. How long will they take
    13·1 answer
  • Which fraction is equivalent to 20%?<br> 1/20<br> 2/20<br> 4/20<br> 5/20
    8·2 answers
  • Given ????(a1, aa2), ????(????1, ????2), ????(c1, c2), and ????(d1, d2), find a general formula in terms of a1, a2, ????1, ????2
    14·1 answer
  • Can u guys PLEASE answer question 19 ASAP. THIS IS URGENT
    13·1 answer
  • Simplify:<br><br> 5(6h – 1) – 5h<br> A. h – 1<br> B. h – 5<br> C. 25h – 5<br> D. 35h – 5
    14·2 answers
  • PLEASE HELP!!! I WILL RATE YOU BRAINLIEST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!