# no spams ans should be well explained
1 answer:
Answer:
- 231 m²
- ₹ 4620
Step-by-step explanation:
<em>See the attached.</em>
The path goes along the perimeter of the park and parallel to the sides, something like the picture attached.
<u>The path is 1 m wide and the total length is:</u>
- 50*3 + 30*3 = 240 m
We need to consider the dark cells points in the picture with reflects the overlaps. They are counted twice and each is 1 m x 1 m.
<u>Subtracting the duplicated area 9 x 1 m² to get the total area of the path:</u>
- 240 - 9 = 231 m²
<u>The cost of cementing is:</u>
- 231*20 = 4620
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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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