Ratio and Percentages
In a class of 30 students, the ratio of students with long hair to students with short hair is 2:3. How many students have long hair?
12 students
You brought a fancy printer for $325. You noticed it was on sale and was 12% off. How much would you save if you bought the printer?
You realized that a big bag of talkies should have 9.9 oz. The small bags of talkies only hold 3.25 oz. How much more would you get from buying the big bag of talkies in comparison to the small bag?
6.65 oz
y - 14 = 8x + 2
y = 8x +16
Pyramid scheme. You joined a company that tells you that every 3 people you recruit, you can make $180.
Write and equation that represents this situation using variables i (income) and p (people).
BONUS: How much money can you make if you recruit 50 people?
I = 60p
During a basketball game, a player made shots at a ratio of 4 successful shots for every 3 missed shots. If the player made 28 successful shots, how many shots did they miss?
21 missed
You buy a book for $15.00. The sales tax rate is 6%. How much sales tax do you pay?
$0.90 saved
Challenger Deep, the deepest known point in the sea, located in Mariana Trench in the western Pacific Ocean is about 443 feet deeper than the second deepest known point in the southwestern Pacific Ocean. If the southwestern Pacific Ocean trench is 35,433 ft, how deep is the deepest known point in the ocean?
35876 ft
y + 15 = 3x -1
y = 3x -16
12 bags of cherries cost $26.80. Write an expression that can represent the cost of each bag of cherries. Use b for bags and c for cost.
C = 2.23b
You brought 40 chocolates. If it takes her 12 min to eat 5 chocolates, how long would it take him to eat the REMAINING chocolates.
84 min
You are buying a new pair of headphones for $75.00. The sales tax rate in your area is 8%. What is the total cost of the headphones, including sales tax?
$81
The weather forecast predicts a 75% chance of rain for Tuesday.
What is the percentage chance that it will not rain?
25% of not raining
3y = 3x +6
y = x + 2
You need to drive 20 miles. It takes 4 minutes for him to travel 1.5 miles. Write an equation using this expression if he’s traveling the same rate the whole journey. Use t for time.
20 = (4/1.5)t
A deciduous tree had 2,500 leaves at the beginning of autumn. By the end of October, 1,750 leaves had fallen.
What is the ratio of leaves that have fallen to the original number of leaves? Express your answer as a simplified fraction.
7:100
You buy a pack of markers for $3.15 and two erasers from Meijer for $2.47. Including the 6% tax, how much did you pay in total?
$5.96
A city's water reservoir is filled to 80% of its total capacity. Due to recent dry weather, the water level has dropped by 10% of its current amount.
What percentage of the reservoir's total capacity is the current water level?
70% of its total capacity
(1/4)y = 2x
y = 8x
It cost $18.48 for a variety pack of 50 chips. Write an equation for how much each bag of chips cost.
P = (18.48/50)C
A winter storm dropped 6 inches of snow in the first 3 hours. The total snowfall after 5 hours was 10 inches.
→ What percentage of the total snowfall occurred in the first 3 hours?
60%
You got pants 25% off. However, there was a promotion that allowed her to get another 15% off. If the price of the pants was originally $42, how much did it cost after the sale? Note, she did not pay tax on this article of clothing
$26.78
You are at a Tigers game that holds 41,083 seats. Currently, only ⅓ of the seats are filled. How many more people can be seated in the stadium?
27,388 more people can fit
13 - 3y = 2x
y = (-1/3)(2x-13)
If 7 tomatoes cost $4 total, write an equation for the total cost of tomato. Use t for tomato and c for cost!
C = 1.75t