Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints. If he spent a total of $23.65, what was the cost of the paints?
Answers
Cost of a car =$8.95
Cost of 2 cars =$8.95×2
=$17.90
Total amount spent=$23.65
cost of paints =$23.65-$17.90
=$5.75
Answer:
Cost of the paints = $5.75
Step-by-step explanation:
Given:
Cost of 1 model sports car = $8.95
Total cost of 2 model cars and paints = $23.65
Find:
Cost of paints = ?
Solution:
Cost of 1 model sports car =
Cost of 2 model sports cars =
=
Total Cost = Cost of cars + Cost of paints
∴ Cost of paints = Total Cost - Cost of cars
=
=
Therefore, the cost of paints = $5.75
This problem deals with basic mathematical operations. Basic arithmetical operations include addition, subtraction, multiplication, and division.
Basic Arithmetic Operations
i) Addition: Addition is a mathematical operation of adding 2 numbers. It is denoted by the '+' symbol.
Eg. 7 + 3.4 = 10.4
ii) Subtraction: Subtraction is the arithmetic operation of finding the difference between 2 numbers. It is represented using the '-' symbol. If a greater number is subtracted by a smaller number, the result will be a positive number. Else, the result will be a negative number.
Eg. 8 - 2 = 6 whereas, 2 -8 = -6
iii) Multiplication: Multiplication is the basic arithmetic operation that represents the repeated addition of numbers. The result obtained by multiplying 2 numbers is known as the product of the numbers. It is represented using the '×' symbol.
Eg. 2 × 3 = 6
iv) Division: Division is a mathematical operation of distributing a group of numbers into equal parts. The result obtained by dividing 2 numbers is known as the quotient of the numbers. It is represented using '÷' or '/' symbol.
Eg. 8 ÷ 4 = 2
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