A theater can seat 170 people. The number of rows is 7 less than the number of seats in each row. How many rows of seats are the

Question

djverab [1.8K]

2 years ago

13

A theater can seat 170 people. The number of rows is 7 less than the number of seats in each row. How many rows of seats are the

re?

Mathematics

1 answer:

maks197457 [2] · Answer 1 · 2023-03-16T14:39:21+03:00

Answer:number of rows =10
number of places in row = 17

Step-by-step explanation:
number of rows =N
number of places in row = N+7
N(N+7)=170
N^2+7n-170=0
(N+17)(N-10)=0
N1=-17
N2=10
We can`t take negative value for quantity of smth so we throw N1 away
From that number of rows =10
number of places in row = 10+7=17