Question

Znajdź liczbę, której 12% wynosi
(-1/2)² - 1/4 - 3 * 2,4

Answer 1

(-1/2)² -1/4 -3*2,4 =1/4 -1/4 -7,2 =-7,2
12%=12/100 =6/50
-7,2 :6/50 =-7,2*50/6 -1,2*50 = -60  liczba

Answer 2

12/100 *x= (-1/2)^2 - 1/4 -3 *24/10
12/100 *x= 1/4 - 1/4 - 72/10
12/100*x=-72/10
x=-72/10 * 100/12
x=-60