There are 92 beds in a 40-room motel. Each rooms has 2 or 3 beds. How many rooms have 2 beds?

Question

13-11-2014
Mathematics

contestada

There are 92 beds in a 40-room motel. Each rooms has 2 or 3 beds. How many rooms have 2 beds?

Respuesta :

Otras preguntas

1. Which of the following is a true statement? a. The measure of angle A is 53°. b. The measure of angle B is 117°. c. The measure of angle C is 53°. d. All of

what connects people to certain places the world on the turtles back

biology online class join ovw-wawu-bdn funnn classes

Unit 7 geometry homework 8 quadrilaterals. Math

Would a bird enthusiast be more likely to hold an owl-watching Vigil at night or during the day?

Need help with this pls and thanks

Where to graph each equation in the grid. 10+10x=y 100-5x+y

part other than hydrogen that acid contain

Need the answers am having trouble with this last question help me pls

luana luana · Answer 1 · 2014-11-13T00:22:04+01:00

luana luana

13-11-2014

[tex]x-\ rooms\ with\ 2\ beds\\\\ y-\rooms\ with\ 3\ beds\\\\\\ x+y=40\ \ \ \ --->\ \ \ x=40-y\\ 2x+3y=92\\\\ 2(40-y)+3y=92\\\\ 80-2y+3y=92\\\\ y+80=92\ \ \ | subtract\ 80\\\\ y=12\\\\x=40-12=28\\\\ 28\ rooms\ has\ 2\ beds.[/tex]

Answer Link