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

Two trains leave the station at the same time, one heading East and the other heading West. The westbound train is going 60mph. The eastbound train is going 80m
16 increased by twice a number is -24
0.632 in two other forms?
describe the relationship between the value of a dollar and the value of a dime
A carton can hold 1000 unit cubes that measure 1 inch by 1 inch by 1 inch. Describe the dimensions of the carton using unit cubes. Can you explain to me how to
What is the best estimate product for 289 and 7
What is 0.00000802 in scientific notation
Two pounds of peaches at the farmers market cost $4.20.How much will 5 pounds cost?
20,000 is 1/10 of what?
do you guys what's 5y/3=20