The cost of a taxi is $40.50 for 15 miles. Find the cost for 20 miles.
1) What is the constant of proportionality?
2) Write an equation to represent the situation.
3) How much does it cost for 20 miles?
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above one is question १ answer
१)The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
2) Combine those data points to find that it cost ($2.415/gallon) / (24 miles/gallon) = $0.100625 to drive a mile in 2017 (on average in the United States). So multiply that by 20 and you find the average cost to drive 20 miles is about $2.01.
3)A situation equation is an equation that represents the situation of the story problem. A solution equation is an equation that shows the operation needed to solve for the variable.
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