Answer:
She was wrong in her analysis because the sales discount of 25% is the discount on the original cost of the dress and not the purchasing cost of the dress as explained below:
Step-by-step explanation:
From the question:
Purchasing cost price of the dress = £30
However, this cost (£30) was after a 25% Sales Discount
It, therefore, implies that £30 is equal to 75% of the cost price
75% of the original cost price = £30
100% of the original cost price = (30 x100%)/75%
Original cost price = £40
Therefore the 25% discount / savings on the cost
= £ (40-30)
= £10
She saved £10 by buying the dress at £30 instead of the original cost of £40
Based on the given problem of -7x⁴ = 36, the solution to the equation is x = -1.5.
<h3>What is the solution to this problem?</h3>
The equation to find x is given as:
-7x⁴ = 36
Solving it gives:
-7x⁴ = 36
x⁴ = 36/-7
x⁴ = -36/7
x = ⁴√(-36/7)
x = -1.5
In conclusion, x is -1.5.
Find out more questions on solving for x at brainly.com/question/2910769
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Here are three ways where There could be equal rows
3*12=36
4*9=36
6*6=36
85 is a <span>26.865671641791% higher than 67
Hope this helps!!
</span>
Answer:
It is a binomial and the degree is 9
