Answer:
8,000 in the 8% account
20,000 in the 9% account.
Step-by-step explanation:
x + y = 28000
0.08 x + 0.09 y = 2440
0.08 x + 0.09 (28000 − x) = 2440
0.08 x + 2520 − 0.09 x = 2440
80 = 0.01 x
x = 8000
y = 20000
Answer:
16.67
Step-by-step explanation:
12 is what percent of 72? = 16.67
Answer:
The length of rectangular pool is 167 meters and the width is 40 meters
Step-by-step explanation:
Let
x ----> the length of rectangular pool
y ----> the width of rectangular pool
we know that
The perimeter of rectangle (rectangular pool) is equal to

we have

so

simplify
----> equation A
----> equation B
solve the system by substitution
substitute equation B in equation A
solve for y

Find the value of x
therefore
The length of rectangular pool is 167 meters and the width is 40 meters
Answer:
The year in which the population of Los Angeles reached 2.6 million is 1965.
Step-by-step explanation:
We are given the approximate population y (in millions) of Los Angeles between 1950 and 2000 is given by:

y = Population(in millions)
We are supposed to find the year in which the population of Los Angeles reached 2.6 million.
Substitute y = 2.6

The real solution is x=14.77≈15
We are given that 0 corresponds to 1950.
So, 15 corresponds to 1965
Hence the year in which the population of Los Angeles reached 2.6 million is 1965.