mariaa50 mariaa50

01-06-2017
Mathematics

contestada

fifteen times the square of a non-zero number is equal to 20 times the number.

Respuesta :

01-06-2017

The square of a number is n^2. So

15n^2=20n subtract 20n from both sides

15n^2-20n=0 factor our 5n

5n(3n-4)=0, since we are told that n does not equal zero...

3n-4=0

3n=4

n=4/3

Answer Link

Otras preguntas

Metals were epanded by heat or metal expand by heat Which sentence is true

I need help on this question

Explain why the roots of a quadratic equation are complex if the value of the discriminant is less than 0.

What is 3 x 49? A. 300 B. 147 C. 89 I am not good at multiplying. 100 points and brain list!

What was the first example of a budget priced home suburb

Please help!!!!!!!!!!! Katie and Tyler are working at their lemonade stand. They have sold 2 1/2 pitchers of lemonade and now have 1/3 of a pitcher left to sell

What were the causes of the Cherokee war?

To what extent was German Unification Planned?

At first they began to look for_ dry place

Equation: –4x – 5 + 2x = –11