3x - 4y = 35
3x + 4y = 5
------------------add
6x = 40
x = 40/6 which reduces to 20/3
3x - 4y = 35
3(20/3) - 4y = 35
20 - 4y = 35
-4y = 35 - 20
-4y = 15
y = -15/4
solution is (20/3, -15/4)
Type in that in Wolfram alpha
John spent 30 on six cars 5 times 6 = 30
Answer:
It does
Step-by-step explanation:
This is because the line has points in which time and distance are connected (Ex. 100 and 2)
Hope this helps! :)
A = Ao(x)^t
Ao = 500
A = 500(x)^t
400 = 500 (x)^1
x = 4/5
A = 500(4/5)^t << The exp eqn