A slice is made parallel to the base of a right rectangular pyramid, as shown. What is the area of the resulting two-dimensional
1 answer:
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Mary McDonald sold 11 small mugs and 10 large mugs.
Step-by-step explanation:
Given,
Total cost of sold cups = $85
Cost of one small cup = $2.50
Cost of one large cup = $5.75
Cups at the start of day = 215
Cups at the end of day = 194
Cups sold = Cups at the start of day - Cups at end of day
Cups sold = 215 - 194 = 21
Let,
x represents the number of small cups.
y represents the number of large cups.
According to given statement;
x+y=21 Eqn 1
2.50x+5.75y=85 Eqn 2
Multiplying Eqn 1 by 2.50
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 3.25
Putting in Eqn 1
Mary McDonald sold 11 small mugs and 10 large mugs.
Keywords: linear equation, subtraction
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