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sweet-ann [11.9K]
3 years ago
12

A local coffee shop sells 35 medium and large cups

Mathematics
1 answer:
Orlov [11]3 years ago
3 0

The right answer is Option C: 20

Step-by-step explanation:

Given,

Cost of medium cup of coffee = $3.00

Cost of large cup of coffee = $4.00

Total cups sold = 35

Total revenue for the coffee = $125.00

Let,

Number of medium cups of coffee = x

Number of large cups of coffee = y

According to given statement;

x+y=35    Eqn 1

3.00x+4.00y=125.00    Eqn 2

Multiplying Eqn 1 by 3;

3(x+y=35)\\3x+3y=105\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(3.00x+4.00y)-(3x+3y)=125.00-105\\3.00x+4.00y-3x-3y=20\\y=20

As y represents the number of large cups, therefore,

20 large cups of coffee were sold by the shop.

The right answer is Option C: 20

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/13168205
  • brainly.com/question/13218251

#LearnwithBrainly

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