What is an equivalent expression?
DCA 2 Review

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Mathematics
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An equivalent expression is one that has the same value as another expression for all values of the variable(s) involved. For example, 9(6 + x) is equivalent to 9⋅6 + 9⋅x.
2.
FLASHCARD QUESTION
Front
How do you find the amount of paint needed to make a larger quantity of a mixture?
Back
To find the amount of paint needed for a larger quantity, set up a proportion based on the original mixture. For example, if 5 pints of blue and 2 pints of yellow make 7 pints of green, to make 28 pints, you would calculate: (5/7) * 28 = 20 pints of blue.
3.
FLASHCARD QUESTION
Front
What is the formula to calculate a percentage of a total?
Back
To calculate a percentage of a total, use the formula: (percentage/100) * total. For example, to find 32% of a budget, multiply the budget by 0.32.
4.
FLASHCARD QUESTION
Front
How do you convert a percentage to a fraction?
Back
To convert a percentage to a fraction, divide the percentage by 100 and simplify if possible. For example, 32% = 32/100 = 8/25.
5.
FLASHCARD QUESTION
Front
What is the relationship between fractions and percentages?
Back
Fractions and percentages are two ways to represent parts of a whole. A percentage is a fraction with a denominator of 100.
6.
FLASHCARD QUESTION
Front
How do you calculate the number of people wearing a specific shirt based on a percentage?
Back
To calculate the number of people wearing a specific shirt based on a percentage, multiply the total number of people by the percentage (as a decimal). For example, 75% of 120 people is 0.75 * 120 = 90 people.
7.
FLASHCARD QUESTION
Front
What does it mean to simplify a fraction?
Back
Simplifying a fraction means reducing it to its lowest terms, where the numerator and denominator have no common factors other than 1.
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