Step-by-step explanation:
100 = ( 8 + 2x) ( 10 + 2x )
100 = 80 + 36x + 4x ^2 ( binomial product )
80 + 36x + 4x^2 = 100
80 + 36x + 4×^2 - 100 = 100 - 100
4x^2 + 36x - 20 = 0
I am not able to write the next steps but you can use symbolab to find out the answer and for the clear understanding
I am reay sorry
use symbolab app
Answer:
Yes
Step-by-step explanation:
14/18 equals 7/9
Dividing by two on the first ratio makes:
7/9 equals 7/9
Answer:
y=2.65x+2.50
Step-by-step explanation:
$18 = 14 + 0.20(t)
- 14
4 = 0.20t
Divide 4 by 0.20
t = 20
0.20 * 20 = 4
4 + 14 = 18
Because it only charged her for texts after 450, its 450 + 20.
470. She sent 470 texts that month.
