Atrucking company had 3 trucks. the first truck traveled 790 miles, the second truck traveled 830 miles, and the third truck traveled 948 miles. each truck traveled 12 miles on a gallon of gas. gas cost $1.60 per gallon. compute the amount the trucking company spent on gas.

Find the total miles of all 3 trucks:

790 + 830 + 948 = 2568

Divide the total by the 12 miles per gallon to find total

Gallons used:

2568 / 12 = 214 total gallons

Multiply total gallons by price:

214 x 1.60 = 342.40

Total amount = $342.40

because 1.2 isnt half of 6 duh

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places