What is the formula to calculate the distance traveled if you know the total distance a vehicle can travel on a full tank and the percentage of the tank used?
Topic 3 Mid-Topic Review

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Distance = Total Distance * (Percentage Used / 100). For example, if a car can go 120 miles on a full tank and 30% of the tank is used, the distance traveled is 120 * (30/100) = 36 miles.
2.
FLASHCARD QUESTION
Front
How do you calculate the total cost of an item after applying a discount and adding tax?
Back
Total Cost = (Original Price - Discount) + Tax. For example, if a sweater costs $20 with a 15% discount and $2.80 tax, the total cost is $20 - ($20 * 0.15) + $2.80 = $19.80.
3.
FLASHCARD QUESTION
Front
What is the relationship between part, whole, and percent in a percentage problem?
Back
Percent = (Part / Whole) * 100. For example, if 35 boys are 5% of the total enrollment, the total enrollment (Whole) can be found using the formula: Whole = Part / (Percent / 100).
4.
FLASHCARD QUESTION
Front
How do you find the number of right-handed players in a group if you know the total number of players and the percentage that are right-handed?
Back
Number of Right-Handed Players = Total Players * (Percentage of Right-Handed / 100). For example, if there are 60 players and 20% are right-handed, then there are 60 * (20/100) = 12 right-handed players.
5.
FLASHCARD QUESTION
Front
What does it mean to find the 'part' in a percentage problem?
Back
Finding the 'part' means determining how much of the whole corresponds to a given percentage. For example, if you know that 9 out of 20 birds are sparrows, you are finding the part (9) that represents the percentage of sparrows.
6.
FLASHCARD QUESTION
Front
What is the formula to find the total number of students in a school if you know the number of students in a specific group and the percentage that group represents?
Back
Total Students = Number of Students in Group / (Percentage Represented / 100). For example, if 35 boys represent 5% of the total, then Total Students = 35 / (5/100) = 700.
7.
FLASHCARD QUESTION
Front
How do you calculate a percentage discount on an item?
Back
Percentage Discount = Original Price * (Discount Rate / 100). For example, for a $20 item with a 15% discount, the discount amount is $20 * (15/100) = $3.
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