SAT Question of the Day 3-16-20

Front

What is the formula to calculate the cost of electricity per kilowatt-hour?

Back

Cost per kWh = Total Cost / Total kWh consumed

Front

How do you convert kilowatt-hours to cents?

Back

Multiply the cost per kWh by 100 to convert to cents.

Front

If an air conditioner consumes 270 kWh in a month and costs $32.40, what is the cost in cents per kWh?

Back

12 cents per kWh.

Front

What is the rate of ticket sales if 20,000 tickets are sold in 12 minutes?

Back

The rate is approximately 1,667 tickets per minute.

Front

How many tickets are sold in 5 minutes if tickets are sold at a constant rate?

Back

8,333 tickets.

Front

What is a linear function and how is it represented?

Back

A linear function is a function that graphs to a straight line, represented as p(t) = mt + b, where m is the slope and b is the y-intercept.

Front

What does the variable 't' represent in the population model of Belize?

Back

The variable 't' represents the number of years since 2005.

Front

How do you model population growth with a linear function?

Back

Population can be modeled as p(t) = initial population + growth rate * t.

Front

What is the initial population of Belize in 2010 according to the given model?

Back

The initial population in 2010 is 308,595.

Front

What is the growth rate of the population of Belize from 2005 to 2013?

Back

The growth rate is approximately 7,500 people per year.