Answer:
$920
Step-by-step explanation:
The amounts added are the arithmetic sequence ...
1, 2, 3, ... 40
The average term of this sequence is (1 +40)/2 = 20.5. The sum of the terms of this sequence is the number of terms (40) multiplied by the average term (20.5). That product is ...
40·20.5 = 820
Chu-Li will have added $820 to her bank in 40 weeks, so the total there is ...
$100 +820 = $920 . . . amount Chu-Li will have 40 weeks from now
Answer:
16
Step-by-step explanation:
10 · 4 = 40
640/40= 16
Answer:
23.55
Step-by-step explanation:
The answer is actually a repeating decimal with an infinite amount of 5s but you only really need to show 2 or 3 to show that it's repeating
I suggest reading them over and over again to remember them. I know it sounds annoying, but trust me, it'll pay off.
Answer:
120.75 miles apart
Step-by-step explanation:
