$744.43, #3, and 17,922 ok
Answer:
Step-by-step explanation:
You are given values for x. Plug them in to the given equations. Graph the two lines. Find the intersection. You can tell from the chart when you get the same y value for both equations
Answer:
(none, it's a word problem)
Step-by-step explanation:
they all have the same denominator.
Answer:
x = 10, y = 13
Step-by-step explanation:
Because EYD is 70, then FEY is also 70. Both triangles are identical.
This means:
45 + 70 + 7x - 5 = 180
7x = 70
x = 10
EFY and EDY are identical and this means:
7x - 5 = 5y
7*10 - 5 = 5y
5y = 65
y = 13
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
