You just finished a triathlon in a spectacular  2
 hours, and you want to know how fast you swam. The race consists of 
1
 mile of swimming, 
12
 miles of bicycling, and 
3
 miles of running. You know that you biked for 
1
 hour and you ran at a speed of 
5
 miles per hour. How many miles per hour did you swim? Your answer should be a number only, rounded to the nearest tenth, without units.

add an !

step-by-step explanation:

y + 11 = (1/4)(x + 16)

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.