14) use the distributive property to remove the parentheses 2(x+5) 15)use the distributive

     14.) 2x+10

                    15.)4x-4m+20

                    16.) 1

Step-by-step explanation:

speed of one plane is 50 miles/hour

Speed of other plane is 82 miles/hour

Step-by-step explanation:

Given : Two airplanes leave the same place and fly in opposite directions. The average rate of one plane is 32 miles per hour faster than the other one.

To Find: . Find the rate of each plane if they are 1098 miles apart after 1 1/2 hours

Solution : Let the speed of one plane be x miles per hour

Time =

So, distance traveled by one plane in 1.5 hours = speed * time

                                                        = 1.5 x

Since we are given that speed of other plane is 32 more than one

So, speed of other plane is x+32 miles per hour

Time = 1.5 hours

So, distance traveled by other plane in 1.5 hours = speed * time

                                                                                 = 1.5 (x+32)

Since they are 1098 miles apart after 1.5 hours

So,

So, speed of one plane is 50 miles/hour

Speed of other plane is x+32=50+32 =82 miles/hour