Answer:
20
Step-by-step explanation:
The first equation is 50 - 2x (because you start with $50 and subtract 2 for each 30 day period)
The second equation is 40-1.5x
Set them equal to each other: 50 - 2x = 40 - 1.5x
Solve for x:
50 - 2x = 40 - 1.5 x
+2x +2x
-----------------------
50 = 40 + 0.5 x
-40 -40
-------------------
10 = 0.5 x
20 = x
So there will be 20 30-day periods until the cards will be equal in value.
Check: After 20 periods, 50 - 2(20) = $10 left
40 - 1.5(20) = also $10 left
Answer:
a =14.3178211
Step-by-step explanation:
a^2 +B^2=C^2
13^2+6^2=C^2
169+36=C^2
205=C^2
C=14.3178211= LENGTH OF AC
Answer:
The solution to this question is 104.25cm²
Step-by-step explanation:
u
80 because 81 is closer to 80 than 90
Answer:
-11
Step-by-step explanation:
