Question 176557
let the cost of a hamburger and order of fries be h and f respectively
:
h+2f=2.5......eq 1
2h+3f=4.25....eq 2
:
re write eq 1 to h=2.5-2f and take that value and plug it into eq 2
:
2(2.5-2f)+3f=4.25
:
5-4f+3f=4.25
:
-f=-.75
:
${{{highlight(f=.75)}}}per fries
:
${{{highlight(h=2.5-2(.75)=1.00)}}}per hamburger