Question

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

Answer 1

Answer:

59.) 80 smokers, 280 nonsmokers.

61.) 240 men, 200 women

Step-by-step explanation:

59.)

Start with:

$\frac{2}{7}= \frac{x-100}{x+100}$

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.

$6(40)=240$

$5(40)=200$