Step-by-step explanation:
4x^2-9
=(2x)^2 -3^2
=(2x+3) (2x-3)
Hope this helps you.
3. You purchase a car using a $20,000 loan with a 5% simple interest rate.
(a) How much interest do you pay on your loan if you pay off the loan in 4 years? Show your work.
(b) How much interest do you pay on your loan if you pay off the loan in 2 years? Show your work.
(c) How much interest do you save by paying the loan off in 2 years instead of 4? Show your work. Answer:
I depends on the price of gas and how many gallons she has and how fast she is going and if she would have to stop could you please clarify?
-eagle
Let’s give these two numbers variables
Let ‘a’ be the larger number
Let ‘b’ be the smaller number
Now from the question we know:
a + b = 30 or a = 30 - b
2a - 3b = 5
Now, let’s plug the first equation into the second to find ‘b’:
2(30 - b) - 3b = 5
60 - 2b - 3b = 5
60 - 5b = 5
55 = 5b
b = 11
Now we solve for ‘a’:
a = 30 - b
a = 30 - 11
a = 19
Now the question asks for the positive difference between the two numbers, so:
a - b = ?
19 - 11 = 8
Hope this helps!
