putriAzrchikiN putriAzrchikiN

16-11-2016
Mathematics

contestada

One number is 8 times another. their product is 40 times their sum. find the numbers.

Respuesta :

16-11-2016

x = 8y
xy = 40 ( x + y )
xy = 40x + 40y
8y(y) = 40(8y) + 40y
8y^2 - 32y - 40y = 0
8y^2 = 72
y^2 = 9
y = 3 , y = - 3

x = 8(3)
x = 24

y = 3

Answer Link

Otras preguntas

A standard deck of cards contains 52 cards how many ways is it 5 cards in same suits

Tomas is babysitting his neighbor’s seven-month-old child who has just begun to eat solid foods. the parents did not mention any food allergies, but tomas would

Which best describes china's economic impact on living conditions and trends?

The denominator of a fraction in simplest form is greater than the numerator by 3. If 7 is added to the numerator, and 5 added to the denominator, then the fr

What function does red bone marrow serve??

The difference between the states of matter is the behavior and arrangement of the atoms or compounds. Describe the behavior and arrangement of a solid - l

When did the nationalist communist alliance split what did communist do after the split

Identify one ethical issue that exists in the health sciences. (It can be one such as cloning, issues with medical research, etc.). What are the different sides

PIZZZZ HELP EASY H.W Write a sentence for each word it's okay if u didn't write all these words Nouns: effect limit reson technology solution demand develop

how are scientists able to determine that there are different plates on earth's surface