Selena walk from home to school each morning and back home each afternoon altogether she walks 2/3 mile each day how far does selena live from school

Selena lives mile far from school.

Step-by-step explanation:

  Let the distance Selena walk from home to school be x mile. then the distance she walk back to home will be x mile also . as distance between home to school is same as distance between school to home.

Total distance Selena walk each day  = x + x = 2x

also, given distance traveled by Selena each day =

Thus,

Solve for x, we get,

Thus, Selena lives mile far from school.

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step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15