A. The number of different colors on the page.
D. Half the speed of the car.
These statements contain variables representing unknown quantities or values.
Variables in mathematics and science are symbols that represent unknown values or quantities. Let's analyze each statement to identify the ones containing variables:
A. "The number of different colors on the page."
This statement contains a variable because it represents an unknown quantity, the number of colors.
B. "They scored 27 points."
This statement does not contain a variable as it explicitly states a specific value (27 points).
C. "Eighty miles per hour."
This statement does not contain a variable as it provides a specific constant value (80 miles per hour).
D. "Half the speed of the car."
This statement contains a variable because it represents an unknown value, which would depend on the actual speed of the car.
In summary, the statements containing variables are:
A. The number of different colors on the page.
D. Half the speed of the car.
These statements represent quantities that can vary, making them suitable for mathematical or scientific analysis where variables are used to express relationships and solve equations.
For more such questions on speed
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1. Write an equation that can be used to represent the situation above
2. Solve the equation
3. Prove the solution by plugging it into both sides of the equation
Answer:
3 or 5
Step-by-step explanation:
Because follow the problem
Show all work
Answer:
-2a^2+3a-6
Step-by-step explanation:
a^2+a-1-(3a^2-2a+5)
=a^2+a-1-3a^2+2a-5
=-2a^2+3a-6