Quiz: Can you solve this question? An envelope and a stamp cost $2.50 both. The envelope costs 2 dollars more than the stamp. How much does the stamp costs? Quiz Forum 7/18/2020 Seth 3 Answer(s) 364 views

## Answers ( 3 )

Let x represent the envelope and y also represent the stamp

So, x+y=$2.50

For the envelope i.e x to cost 2 more than the stamp i.e y

We have x=y+2

By forming a simultaneous equation

x+y=2.50...eqn 1

x=y+2...eqn 2

Put x into eqn 1

So we now have

(y+2)+y=2.50

y+2+y=2.50

2+2y=2.50

2y=2.50-2

2y=0.50

Divide both sides by 2

y=0.25

Therefore, y which represent stamp is $0.25

- Cyberking

50 bucks

Slimsam

The envelope is now 4.50 minus the stamp amount which is 2.50 .... So therefore 4.50-2.50=2.00 ...the stamp is 2.00