fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

if 2 times a number is subtracted from the square of the same number, the result is at most 80. find the greatest possible number

Solution

i f 2 t im es a n u mb er i s s u b t r a c t e d f ro m t h e s q u a re o f t h e s am e n u mb er, t h e res u lt i s a t m os t 80. f in d t h e g re a t es t p oss ib l e n u mb er

Solution

- 8 \leq x \leq 10

étapes des solutions

Represent the number with

x

A.T.Q.:

x^{2} - 2 x \leq 80

Solutionner pour

x, x^{2} - 2 x \leq 80 : - 8 \leq x \leq 10

- 8 \leq x \leq 10

Exemples populaires

The sum of two numbers is 78. Five times the smaller number is 12 less than twice the larger number. What are the numbers?a man travels 180km from the farm to town. on the return journey he traveled 30km per hour faster. he saves one hour on the return journey. at what speed did he go to town Zweli wants to buy an ordinary annuity that pays R6 000 a year for the next 20 years. The expect annual interest rates will be 6% over that time period. what is the maximum he will pay for annuity?21 trucks and 35 cars equal how many tires The diamètre of a circle is 16 ft. Find its area in terms of pipi.