a dress costs dh 180. in a sale it is reduced by dh 20. what is the new price?
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-. B. A dress costs Dh 180. In a sale it is reduced by Dh 20. What is the new price?. A. Reduction Dh 20 !. N. Click for the solution / explanation. Underline the key words. Circle the numbers. Allocate letters. State the problem in mathematical terms. B = 180. A = 20. - PowerPoint PPT PresentationTRANSCRIPT
A dress costs Dh 180. In a sale it is reduced by Dh 20. What is the new price?
Underline the key words
Circle the numbers
Write down formula
State the problem in mathematical terms
Allocate letters
Substitute
Solve the equation
Write your answer as a sentence
B
A
N
B = 180 A = 20 N = ???
B A = N B - A = N
180 - 20 = N
160 = N
The new price is Dh 160.
%% Type 1 %%Lukas van Veen
Click for the solution / explanation
-
A clock costs Dh 250. In a sale it is reduced by Dh 50. What is the rate of discount?
Underline the key words
Circle the numbers
Write down formula
State the problem in mathematical terms
Allocate letters
Substitute
Solve the equation
Write your answer as a sentence
B
A
R
B = 250 A = 50 R = ???
R = A B
R = 50 250
R = 50 250 x 100% = 20%
The rate of discount is 20%.
%% Type 1 %%Lukas van Veen
A villa costs Dh 300 000. After a year the villa is sold for 15% more. i What is the profit?ii What is the selling price?
Underline the key words
Circle the numbers
Write down formulae
State the problem in mathematical terms
Allocate letters
Substitute
Solve the equations
Use a sentence
BR
A
B = 300 000 R = 15% A = ? N = ?
A = B x R
A = 300 000 x 15 100
A = 45 000
The profit is Dh 45 000, the selling price is Dh 345 000
%% Type 2 %% Lukas van Veen
N
B A = N B + A = N
300 000 + A = N
300 000 + 45 000 = N
345 000 = N
Try exercise 7.4:Type 1 & 2Questions