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Luden [163]
3 years ago
7

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

Mathematics
1 answer:
slava [35]3 years ago
3 0

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

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