Answer:
15
Step-by-step explanation:
The statement indicates that Daniel scored 3 points which represents 20% of his average points and from this information, you can use the rule of three to find his average point total which is the 100%:
3 points → 20%
x ← 100%
x= (3*100)/20
x= 15
Daniel's average point total is 15.
Answer:
Tina can select and answer the essay questions on her test in 35 ways.
Step-by-step explanation:
The order in which she chooses the questions is not important. For example, choosing questions 1, 3 and 7 is the same as choosing 7, 3 and 1. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
Three questions from a set of 7. So
Tina can select and answer the essay questions on her test in 35 ways.
Yes, this particular one is a function because the inputs hace exactly one output.
Answer:
-8x +6
Step-by-step explanation:
5x−2 from −3x+4 .
This means take the 2nd number and subtract the 1st
-3x +4
-( 5x -2)
----------------
Distribute the negative sign
-3x +4
- 5x +2
----------------
-8x +6
Second one
1/16
3/8 divided by 1/6=1/16
