3 years ago

24 people where using gym. the ratio of men to women is 2:1. what is the ratio of men

1 answer:

6 0

Salutations!

let the number of men be x

2x + x = 24

combine the like terms

$2x+x=24$

$3x = 24$

$x=24/3$

$x=8$

The ratio of men is 8

hope I helped (:

have a great day!

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ale4655 [162]

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3 years ago

the length of a rectangle is five feet less than its width. If the area of the rectangle is 84 square feet, find its dimensions

KIM [24]

Let
x---------> the length of the rectangle
y--------> the width of the rectangle

we know that
A=84 ft²
[area of rectangle]=x*y-----> 84=x*y-----> equation 1
x=y-5------> equation 2
substitute 2 in 1
84=[y-5]*y-----> 84=y²-5y---------> y²-5y-84=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
y=12
x=y-5-----> x=12-5-----> x=7

the answer is
the length of the rectangle is 7 ft
the width of the rectangle is 12 ft