At a restaurant here in the city, a cup of coffee used to cost SEK 2.50 and a cup of tea SEK 2.25. At closing time one day it is stated that they sold coffee and tea for SEK 400. How many cups of coffee respectively tea can you have sold?
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Can someone please help to solve this diaphonic equation: 2,50x + 2, 25y= 400. I got some answer before but it was wrong.
At a restaurant here in the city, a cup of coffee used to cost SEK 2.50 and a cup of tea SEK 2.25. At closing time one day it is stated that they sold coffee and tea for SEK 400. How many cups of coffee respectively tea can you have sold?
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