Answer:
Billy has $27.51
Step-by-step explanation:
First let's set up an equation to solve this problem.
Assign a variable to Billy's amount. Let's make it x.
Then we just interpret the problem and solve:
2x - 1.30 = 53.72
+1.30 +1.30
----------------------------
2x = 55.02
(Divide by 2 on both sides)
----------------------------
x = $27.51
2x = Billy's amount doubled
2x - 1.30 = Taking away 1.30 from double Billy's amount
53.72 = Sara's amount
This is an example I put a dot where -2 3/4 should be
I believe the answer would be 6.96 cm
You could say each drink is d. And we'll say the total is t. David got 4 drinks,
So... 12.74 + 4d = t
Hope this helps!
