An oil spill covers 4 square kilometers in 14 of an hour. At this rate, how many square kilometers will it cover in 2 hours? Responses 32 square kilometers 32 square kilometers - no response given 16 square kilometers 16 square kilometers - no response given 2 square kilometers 2 square kilometers - no response given 8 square kilometers
To find out how many square kilometers an oil spill will cover in 2 hours, we need to determine how many square kilometers it covers in 1 hour and then multiply that by 2.
In 14 of an hour, the oil spill covers 4 square kilometers.
To determine how many square kilometers it covers in 1 hour, we can multiply the coverage in 14 of an hour by 2.
4 square kilometers * (1 hour / 14 of an hour) = 8 square kilometers/hour.
Therefore, in 2 hours, the oil spill will cover 8 square kilometers/hour * 2 hours = 16 square kilometers.
So the correct response is 16 square kilometers.
A town’s population has grown by 600 people in the last 2 years. On average, how many people will the town grow by in 5 years? Responses 3,000 people 3,000 people - no response given 240 people 240 people - no response given 300 people 300 people - no response given 1,500 people
To calculate the average growth rate of the town's population per year, we divide the total growth in population over a certain period by the number of years in that period.
In this case, the town's population grew by 600 people in the last 2 years.
To find the average growth rate per year, we divide 600 people by 2 years.
600 people / 2 years = 300 people/year.
Therefore, on average, the town will grow by 300 people in 1 year.
To determine how many people the town will grow by in 5 years, we multiply the average growth rate per year by 5.
300 people/year * 5 years = 1,500 people.
Therefore, the correct response is 1,500 people.
A scientist samples a deer population and finds 200 deer in an area of 10 square miles. On average, how many deer can the scientist expect to find in an area of 300 square miles? Responses 20 deer 20 deer - no response given 6,000 deer 6,000 deer - no response given 60,000 deer 60,000 deer - no response given 320 deer 320 deer - no response given
To determine how many deer the scientist can expect to find in an area of 300 square miles, we need to calculate the average deer density.
The scientist found 200 deer in an area of 10 square miles.
To find the average deer density, we divide the number of deer by the area: 200 deer / 10 square miles = 20 deer per square mile.
So, the average deer density is 20 deer per square mile.
To calculate the number of deer in an area of 300 square miles, we multiply the average deer density by the area: 20 deer per square mile * 300 square miles = 6,000 deer.
Therefore, the scientist can expect to find 6,000 deer in an area of 300 square miles.
So the correct response is 6,000 deer.
A baker bakes 3 batches of cookies and makes 42 cookies. How many cookies will be made if the baker bakes 2 batches? Responses 63 cookies 63 cookies - no response given 84 cookies 84 cookies - no response given 28 cookies 28 cookies - no response given 14 cookies
If the baker bakes 3 batches and makes 42 cookies, we can find out how many cookies will be made if the baker bakes 2 batches by dividing the total number of cookies by the number of batches and then multiplying by the new number of batches.
The baker makes 42 cookies by baking 3 batches, so the number of cookies made per batch is 42 cookies / 3 batches = 14 cookies per batch.
To find out how many cookies will be made if the baker bakes 2 batches, we multiply the number of cookies per batch by the new number of batches: 14 cookies per batch * 2 batches = 28 cookies.
Therefore, if the baker bakes 2 batches, they will make 28 cookies.
So the correct response is 28 cookies.
A driver drove 90 miles and used 4 gallons of gasoline. What is the vehicle’s consumption rate in miles per gallon? Responses 490 miles per gallon 4 over 90 miles per gallon - no response given 22.5 miles per gallon 22.5 miles per gallon - no response given 20 miles per gallon 20 miles per gallon - no response given 22.5 gallons per mile
To find the vehicle's consumption rate in miles per gallon, we need to divide the total miles driven by the number of gallons of gasoline used.
The driver drove 90 miles and used 4 gallons of gasoline.
To calculate the consumption rate, we divide the number of miles driven by the number of gallons used: 90 miles / 4 gallons = 22.5 miles per gallon.
Therefore, the vehicle's consumption rate is 22.5 miles per gallon.
So the correct response is 22.5 miles per gallon.