Question

NEED HELP PLZ DUE IN 20 AND CAN YOU SHOW WORK PLZ

Answer 1

59.) 80 smokers, 280 nonsmokers.

61.) 240 men, 200 women

Explanation:

59.)

Start with:

`(2)/(7)= (x-100)/(x+100)`

Cross product.

`2x+200=7x-700`

Subtract
`2x` from both sides of the equation.

`200=5x-700`

Add
`700` to both sides of the equation.

`900=5x`

Divide by
`5`

`x=180`

Substitute in your x-value.

`(180)-100 = 80`

`(180)+100= 280`

61.)

Start with:

`6x+5x=440`

Combine like terms.

`11x=440`

Divide by the coefficient of
`x`, which is
`11`

`x=40`

Substitute.

`6(40)=240`

`5(40)=200`