An airplane travels 2,350 miles in 5 hours. Theo did this work to find the unit rate. Rate = StartFraction 2,350 miles Over 5 hours EndFraction. Unit rate = 470 miles per hour.

What should you do next to find out how far the airplane traveled in 3 hours?
divide 470 by 3
divide 2,350 by 3
multiply 470 by 3
multiply 2,350 by 3

Step-by-step explanation:

   On Edge this is the answer.

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

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