X + 0.4[6-x] = 0.5*6 0.6x = 0.6 x = 1 gallon the answer is, "one gallon".
Question number one is 2/3
First you would subtract 30 from both sides
they divide each side by 5 to get -7
y =-7
2.5x1.30=3.25
4x4.50=18
2x3.75=7.5
3.25+18+7.5=$28.75 total price
2.5+4+2=8.5lb. total weight
28.75/8.5= 3.38 dollars per pound.
Jenna gets paid a total of 10.97 cents an hour<span />