Answer:
Step-by-step explanation:
Twice the difference means:
the difference of a number and 9 means:
is at most 15 means:
A movie theater had 1200 seats arranged in a number of identical rowa. After the number of seats in every row had been increased by 3 and 2 rowa have been removed, the total number of seats in the theater then increased by 4. How many seats where there in each row originally
60
9x^2-11y^2-11x
that is the sum of the polynomials
Answer:
Step-by-step explanation:
hello :
-3/7m<21
multiply by (-1) : 3/7m > 21
now dividid by 3/7 : m > 21×7/3
m > 49
Answer:
x=6.5
y= -.5
Step-by-step explanation:
Plug it in and see if it works to make sure. Good luck