Answer:
3:25 = 15:125
15:125 is directly proportional to 3:25.
Step-by-step explanation:
If I did the math correctly I’d should be -5 or rewritten as -5/1.
Answer:
1, 3, 5
Step-by-step explanation:
The sum of an arithmetic series is:
S_n = n (a_1 + a_n) / 2
100 = n (1 + 19) / 2
n = 10
The nth term of an arithmetic sequence is:
a_n = a_1 + d (n − 1)
19 = 1 + d (10 − 1)
d = 2
The common difference is 2. So the first three terms are 1, 3, and 5.
Answer:
3
Step-by-step explanation:
so you can see it more boldly
explained in the comment thing.