Answer:
x=5
Step-by-step explanation:
9x^2 - 2x + 25 = 8x^2 + 8x
9x^2-8x^2-2x-8x+25=0
x^2-6x+25=0 factorize
(x-5)(x-5)=0
x-5=0 then x=5
Answer:
6
Step-by-step explanation:
That would be:
3 6
---- -------
2 4
---------------- = -------------- = 6 This is the unit rate.
1 1
----- ------
4 4
Answer:
Step-by-step explanation:
First month = $10 x 2
= $20
Second month = $20 x 2
= $40
Third month = $40 x 2
= $80
Fourth month = $80 x 2
= $160
Amy will have $160 balanced in her account after four months.