HOMEWORK...HELP....要方程

Question

1.if the sum of two consecutiveodd numbers is 20,find the smaller number.

2.$3200 is divided among Winnie .Tom and David .If Tom receives three times as much as Winnie,while David receives four times as much as Winnie,how much does Winnie recives?

要式...要ANS

Answer 1

1
let the smaller number is x , larger number is x+2
x+x+2=20
2x=18
x=9
the smaller number is 9
2
let Winnie recives x dollars, then Tom receives 3x dollars and David receives 4x
dollars
x+3x+4x=3200
8x=3200
x=400
Winnie recives 400 dollars

Answer 2

1) x+(x+2)=20
2x+2=20
2x=20-2
2x=18
x=18/2
x=9

2) Winnie=x
Tom=y
David=z
x+(3x)+(4x)=$3,200.00
8x=$3,200.00
x=$3,200.00/8
x=$400.00
Winnie received $400.00

Answer 3

1. Suppose the smaller number is x.
x+x+2=20
2x=18
x=9

2. Suppose Winnie recive $x
Tom recive $3x
David recive $4x

x+3x+4x=3200
8x=3200
x=400