Posted by babygirl on .
(55+80+70+x)/4<=65
can you help me
205205+x<=260205
x<=55 is this right

algebra 
Bosnian,
( 55 + 80 + 70 + x ) / 4 <= 65 Multiply both sides with 4
55 + 80 + 70 + x <= 65 * 4
55 + 80 + 70 + x <= 260
x <= 260  55  80  70
x <= 55