1.The population of a small town was originally 3600 people but decreased to 3240 people after two years. What was the percentage decrease in the population? IF rounding is necessary, round to the nearest hundredth.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
1.The population of a small town was originally 3600 people but decreased to 3240 people after two years. What was the percentage decrease in the population?
IF rounding is necessary, round to the nearest hundredth.
2. Four feet are cut from a twelve-foot board. What is the percent decrease in the length of the board?
IF rounding is necessary, round to the nearest hundredth.
3.Four feet are cut from a twelve-foot board. What is the percent decrease in the length of the board?
IF rounding is necessary, round to the nearest hundredth.
4.The population of lions on a wild game preserve was originally 75 but decreased to 60 after five years. What was the percentage decrease in the population?
IF rounding is necessary, round to the nearest hundredth.
5. A 120-inch board is cut down to 102 inches. What is the percent decrease in length?
IF rounding is necessary, round to the nearest hundredth.
6.A bag has green, blue and red candies. 35% of the candies are green and 20% are blue. If there are 80 total candies, how many are green?
There are green candies in the bag.
7.A bag has pink, blue and red candies. 30% of the candies are pink and 15% are blue. If there are 45 blue candies, how many total candies are in the bag?
There are candies in the bag.
8.An item was on sale for 40% off. If the store took $120 of the original price, what was the original price?
The original price was
9. A bag of candies contains 25% red candies, 15% pink candies, and the rest are white.
If there are 80 red candies,
There are pink candies, and total candies.
10. Michele can make 6 bracelets in 2 hours and 30 minutes. At that rate, how many bracelets can she make in 100 minutes?
Answer: Michele can make bracelets in 100 minutes.
11. A caterer’s best dessert recipe serves 8 people and requires 2 ¼ cups of sugar. How much sugar will be required to make this recipe to serve 200 people at a wedding?
Answer: cups of sugar will be required.
12.
Walter uses cups of flour and cup of sugar to make two loaves of bread. How much flour would be required to make seven loaves of bread?
Walter would need to use
13.
The population of Blueville was 1,400 in 2014. It is currently 1,722. What is the percent increase in the population from 2014 to today?
The percent increase is
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