Is a problem solving method that uses that fact that any number or expression can be multiplied by one without changing it's value.
Answer:
x>4
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
3/4 = 6/8.
6/8 divided by 1/8 = 6
brianliest pls
X=4 or X=-4 because 4(4)^2 does =64
Answer:
16 years
Step-by-step explanation:
Let x represent the number of years. The suburb population is growing at a rate of 5000 per year after x years, it can be represented by the equation:
320000 + 5000x
The city population is declining at a rate of 14000 per year after x years, it can be represented by the equation:
624000 - 14000x
The number of years for the city and suburb population to be equal can be gotten from:
320000 + 5000x = 624000 - 14000x
14000x + 5000x = 624000 - 320000
19000x = 304000
x = 304000 / 19000
x = 16
In 16 years the populations of the suburb and the city be equal
