31.5749...9...9....9....9....
Carter paid $200 for the bike.
Step-by-step explanation:
Given,
Current value of bike = $90
This represent 45% of the original amount Carter paid for bike.
Let,
x represent the original amount of bike.
45% of x = 90

Dividing both sides by 0.45

Carter paid $200 for the bike.
Keywords: percentage, division
Learn more about division at:
#LearnwithBrainly
Answer:
d1=-1/2,d2=1/2
Step-by-step explanation:
hope this helps
3a + 6b = 45
2a - 2b = -12....multiply by 3
----------------
3a + 6b = 45
6a - 6b = - 36 ...(result of multiplying by 3)
---------------add
9a = 9
a = 1
3a + 6b = 45
3(1) + 6b = 45
3 + 6b = 45
6b = 45 - 3
6b = 42
b = 7
solution is : (1,7)