A 2014 Honda Civic hybrid costs $24,635. This car is supposed to get 44 miles per gallon in regular city driving and 47 mpg on the highway.2 A completely gas‐powered 2014 Honda Civic costs $18,390. This car is supposed to get 30 mpg in city driving and 39 mpg on the highway.3 1. What additional information is necessary to determine how much money will be spent on gas in a year of driving one of these vehicles? Write down some reasonable values for any missing information. 2. If you purchase the hybrid Civic, how much money would you save in gasoline purchases the first year? 3. How long would it take for the gasoline savings to make up for the additional cost of the hybrid?
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.
A 2014 Honda Civic hybrid costs $24,635. This car is supposed to get 44 miles per gallon in regular city driving and 47 mpg on the highway.2
A completely gas‐powered 2014 Honda Civic costs $18,390. This car is supposed to get 30 mpg in city driving and 39 mpg on the highway.3
1. What additional information is necessary to determine how much money will be spent on gas in a year of driving one of these vehicles? Write down some reasonable values for any missing information.
2. If you purchase the hybrid Civic, how much money would you save in gasoline purchases the first year?
3. How long would it take for the gasoline savings to make up for the additional cost of the hybrid?
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