Using the information provided, you would do 17/.85 to find the total amount. Subtract that quotient from 17 and you will get how much your friend spent.
Answer is : a-1
Hope this helps :)
Answer:
-10x+2+x=-4x+12
-9x+2=-4x+12
-9x+4x+2=12
-9x+4x=12-2
-5x=10
x=-2
Step-by-step explanation:
O que posso acrescentar é que 3 linhas de segmentos reflexivas no triângulo definem o baricentro... estas 3 linhas serão as medianas do triângulo e o baricentro divide as linhas em 3 partes iguais.