Question 1124480

"At the shake shack, two orders of fries and four shakes cost $5.90. How much is an order of fries ? How would you write out this equation ?"
<pre>Let cost of 1 order of fries and 1 shake be F, and S, respectively
Then we get: 2F + 4S = 5.9______2(F + 2S) = 2(2.95)
F + 2S = 2.95
Equation for an order of fries: {{{highlight_green(matrix(1,3, F, "=", 2.95 - 2S))}}}
That's all!!