The answer:
A: yes
b: no
C:yes
Answer:
Step-by-step explanation:
Original price that she paid for the dish washer is £240. She wants to sell it and make a profit of 25%. It means that price at which she would make a profit of 25% is
240 + 25/100 × 240 = 240 + 60 = 300
To determine the price tag of 40% discount and that would still ensure that she makes £300,
Let x represent the price tag in £. It means that a discount of 40% on £x would be 300. A discount of 40% on £x is expressed as
x - (40/100 × x) = x - 0.4x = 0.6x
So 0.6x = 300
x = 300/0.6 = 500
So the price tag will be £500
Applying the distance formula, DE = a. Therefore, the missing information is: A. a.
<h3>What is the Distance Formula?</h3>
Distance Formula for determining the distance between two points on a coordinate plane is given as: 
.
In the proof given, applying the distance formula to find DE, we have:
DE = √[(a + b - b)² + (c - c)²}
Simplifying this, we would have:
DE = √(a² + 0²) = √(a²)
DE = a
Therefore, the missing information in the proof is: A. a.
Learn more about distance formula on:
brainly.com/question/661229
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L=33 and W=7
Step one, What do we know?
We are told that the perimeter is 80 feet; since the perimeter of a rectangle is 2 times the length plus the width. We are also told that the length is 5 feet longer than four times the width.
Step two, Start solving it.
Combining these two we have 4w + 5=40 - w. We put the w on the right side and the 5 on the left side by adding and subtracting. Now we have 5w=35. We divide both sides by 5 and we get W=7. In order to figure out L, we do
40 - W. We get L=33.
