f = t = n five ten and twenty
5n + 10n + 20n = 560
35n = 560
n = twenty dollar coins = 16
Answer:
i don't know. sorry!
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given





Required
Probability of selecting a yellow then orange rock
From the question, we understand that the probability is that of without replacement.
Since the yellow, is first picked.
We need to determine the probability of picking a yellow rock, first.



The rock has reduced by 1;
Next is to determine the probability of picking an orange rock



The required probability is calculated as thus:




Answer:
n=10
Step-by-step explanation:
-2=-n+8
-n=-10
n=10
Is it asking you to tell them what the numbers that the letters substitute are??
If so o might be able to help with that