Anna is training to run a marathon. She ran `x`miles on Monday and Tuesday, `x+3`miles on Wednesday, and twice as far on Thursday as she did on Wednesday. Write an expression that represents the total distance Anna ran.

y= 4x+6

Step-by-step explanation:

Step one:

given

distances in miles

Monday= x

Wednesday= x+3 miles

Thursday= 2(x+3) miles

Required

The total distance covered

Step two:

let the total be y

y= x+(x+3)+2(x+3)

open bracket

y= x+x+3+2x+6

y= 4x+6

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1