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

Which statement is always true about a trapezoid?1.it has 2 congruent sides.2. It has 2 right angles3. It has no congruent angles4. It has exactly 2 parallel si

A combined total of $46,000 is invested in two bonds that pay 4% and 9.5% simple interest. The annual interest is $3,490.00. How much is invested in each bo

Explain the transition from the Roman society to medieval society. Politically, Socially, Religiously, and economically. How did this thing change Rome to a med

I Am A Number That Is Double The Product Of 2 And 7. One Of My Factors Is 7 What Is My Other factor

Which of the following prefixes is best for measuring large quantities like the mass of a person? milli kilo deci deca

I Am A Number That Is Double The Product Of 2 And 7. One Of My Factors Is 7 What Is My Other factor

answer the following math question: which place value changed in 6652+600+1000=

facts about the Virginia plan

Which of the following prefixes is best for measuring large quantities like the mass of a person? milli kilo deci deca

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