It is 85 miles from Central city to Smithville and 125 miles from Smithville to Jonesburg . How many gallons of gas will it take to drive from Central City to Smithville to jonesburg in a car which gets 30 miles per gallon .

It will take 7 gallons of gas

Step-by-step explanation:

85 miles + 125 miles = 210 miles to drive

30 miles a gallon

210 ÷ 30 = 7

7 gallons needed

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.