9514 1404 393
Answer:
33.3%
Step-by-step explanation:
The selling price of £42 is (1 +40%) times the total purchase price.
1.40 × purchase price = £42
purchase price = £42/1.40 = £30
The total profit is 40% of this, so is ...
£30 × 40% = £12
The purchase price of the skirt is ...
total cost - glove cost = skirt cost = £30 -3 = £27
The profit on the skirt is ...
total profit - glove profit = skirt profit = £12 -100% × £3 = £9
Then the percentage profit on the skirt is ...
skirt profit % = skirt profit / skirt cost × 100% = £9/£27 × 100% = 33.3%
The percentage profit on the cost of the skirt was 33.3%.
Answer:
512
Step-by-step explanation:
since its a cube, all the side lengths are even, so its just 8^3 or 8*8*8
Answer:
B
Step-by-step explanation:
3x + 15 = -4x + 8
7x = -7
x = -1
Answer:
The value of radius is 34.395..
Step-by-step explanation:
The formula for finding the circumference of the circle is:
C=2πr.
Here we have given the values:
circumference = 216 units
π = 3.14.
r = ?
Substitute the values in the formula:
216 = 2(3.14)r
216=6.28r
Now divide both sides by 6.28.
We get,
216/6.28 = 6.28r/6.28
34.395=r
Thus the value of radius is 34.395...
Answer:
The equation of the axis of symmetry is x = 
The coordinates of the vertex are ( , 
) ⇒ 2nd answer
Step-by-step explanation:
The quadratic function y = ax² + bx + c is represented graphically by a parabola which has a minimum/maximum vertex (h , k), where
- h =
and k is value y at x = h - The axis of symmetry of the parabola is a vertical line passes through the vertex point and its equation is x = h
- The minimum/maximum value of the function is (h , k)
∵ y = 4x² + 5x - 1
∵ The form of the quadratic function is y = ax² + bx + c
∴ a = 4 , b = 5 , c = -1
∵ The coordinates of the vertex points are (h , k)
∵ h =
∴ h = 
- To find k substitute x in the function by
∵ k = 4 ( )² + 5( ) - 1
∴ k = 4 ( 
) + ( 
) - 1
∴ k = 
- 
- 1
∴ k =
∴ The coordinates of the vertex are ( , )
∵ The equation of the axis of symmetry is x = h
∵ h =
∴ The equation of the axis of symmetry is x =
