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Your local gas stations are having a price war. During the past 7 days, they have lowered the price of regular gas by $.02 each day. Define a variable. Then write and solve an equation to find the total change in gas price. Show your work.
help, please
change = 7 * 0.02
this is just like distance = time * speed
To solve this problem, we need to define a variable to represent the current price of the regular gas. Let's call this variable "P".
Given that the gas price is lowered by $0.02 each day for 7 days, we can write an equation to represent the total change in gas price. The equation is:
Total change in gas price = Number of days * Decrease in price per day
In this case, the number of days is 7, and the decrease in price per day is $0.02. Plugging these values into the equation, we get:
Total change in gas price = 7 * $0.02
Now, let's solve this equation to find the total change in gas price.
Total change in gas price = 7 * $0.02
Using the multiplication rule, we multiply the numbers:
Total change in gas price = $0.14
Therefore, the total change in gas price is $0.14.
To summarize:
- We defined a variable "P" to represent the current price of regular gas.
- We used the equation Total change in gas price = Number of days * Decrease in price per day, where the number of days is 7 and the decrease in price per day is $0.02.
- We solved the equation to find the total change in gas price, which is $0.14.