Fiona kept track of how many text messages she sent each day one week, the numbers were 21,57,32,25,33,42 and 46 on average how
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Answer:
The lemonade costs 1.4.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
x is the cost of a cookie.
y is the cost of a lemonade.
Total cost for cookie and lemonade is 1.80.
This means that .
As we want y, we have that
Lemonade costs 1.00 more than the cookie?
This means that:
So
The lemonade costs 1.4.