Question

# A man buys four books from the store and a Preferred Reader discount card for $20. Later that day, he goes back and buys five more books. He also got a $5 discount using his new card. If he spent a total of $87 at the bookstore, how much did each book cost assuming every book cost the same amount?

Hint:

### ○ Form the equation using the given information.

○ Take variable quantity as x.

○ After discount the purchasing price will be

(original price - discount)

## The correct answer is: Rs. 30

### ○ Given:

Total sheet metal = 8.2 sq. feet

Used sheet metal = 2.1 sq. feet.

Worth of remaining sheet = Rs. 183

○ Step 1:

Calculate remaining sheet metal.

8.2 - 2.1 sq. feet

6.1 sq. feet

So,

Remaining sheet metal is 6.1 sq. feet..

○ Step 1:

Let the cost of metal sheet per sq. feet be Rs. x

∴ cost of remaining sheet metal is

6.1x rupees

It is given that the cost of remaining sheet metal is 183 rupees

∴ 6.1x = 183

x =

x = 30

- Final Answer:

Hence, the cost of sheet metal per sq. feet is Rs. 30.

### Related Questions to study

### Show the conjecture is false by finding a counterexample. If the product of two numbers is even, then the two numbers must be even.

### Show the conjecture is false by finding a counterexample. If the product of two numbers is even, then the two numbers must be even.

### Dimple Bought a Calculator and binder that were both 15% off the original price. The

original price of binder was Rs 6.20. Justin spent a total of Rs 107. 27 . What was the

original price of the calculator?

The x + 2 = 6 x+2=6x, plus, 2, equals 6 contains a variable. We call this type of equation with a variable an algebraic equation. Finding the variable value that will result in a true equation is typically our aim when solving an algebraic equation.

¶Variables or constants are the two types of measurable quantities. A variable is a quantity with a varying value, and the constant value is nothing but a constant.

¶**Steps to writing Variable Equation**

1) Identify the variables that represent the unknowns.

2) Convert the issue into variable expressions in algebra.

3) Determine the variables' values to solve the equations for their true values.

### Dimple Bought a Calculator and binder that were both 15% off the original price. The

original price of binder was Rs 6.20. Justin spent a total of Rs 107. 27 . What was the

original price of the calculator?

The x + 2 = 6 x+2=6x, plus, 2, equals 6 contains a variable. We call this type of equation with a variable an algebraic equation. Finding the variable value that will result in a true equation is typically our aim when solving an algebraic equation.

¶Variables or constants are the two types of measurable quantities. A variable is a quantity with a varying value, and the constant value is nothing but a constant.

¶**Steps to writing Variable Equation**

1) Identify the variables that represent the unknowns.

2) Convert the issue into variable expressions in algebra.

3) Determine the variables' values to solve the equations for their true values.