stewartabby995 stewartabby995
  • 01-11-2020
  • Mathematics
contestada


A theater can seat 160 people. The number of rows is 6 less than the number of seats in each row. How many rows of seats are there?

Respuesta :

Mrapplestime
Mrapplestime Mrapplestime
  • 01-11-2020

Answer:

10 rows

Step-by-step explanation:

X=rows, y=seats

xy=160    eq1

x=y-6      eq2

y(y-6)=160       plug into eq 1

y^2-6y=160

y^2-6y-160=0

(y-16)(y+10)=0     factor

y=16, y do not equal to -10 bc it's negative

x=y-6=10

Answer Link

Otras preguntas

all fractions between 0 and 1/4
what city is located 60 north 25 east
what city is located 60 north 25 east
How many eights are there in 6 1/2
. What are three factors that could contribute to a source not being credible?
A construction contractor is purchasing granite tiles for a new kitchen floor. Each tile costs $5 and he wants to spend less than $1,500. The size of each tile
Any number that is divisible by 3 is also divisible by 9.Find a counterexample to show that the conjecture is false.18274548
What do you mean by corrosion? How can you prevent it?
A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage?A. 8 volts
Question: 35/8 ( write as mixed number ) Please help me very very quickly!!!!!!!!!!!!!!!!!!!