a science teacher needs to choose 12 out of 16 students to serve as peer tutors how many different ways can the teacher choose t
2 answers:
Answer: There are 1820 ways to choose the 12 students.
Step-by-step explanation:
Since we have given that
Total number of students are there = 16
Number of students a science teacher needs to choose = 12
We need to find the number of ways:
We would use "Combination" to find the number of ways :
So, Number of ways would be
Hence, there are 1820 ways to choose the 12 students.
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Answer:
Step-by-step explanation:
Let
p ----> the price of a watermelon in dollars
w ---> the weight of a watermelon in pounds
In this problem we have a proportional relationship
Remember that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
In this problem
The value of the constant of proportionality k is the same that the unit rate
Find out the unit rate
Divide the total cost by the total weight
substitute in the equation
In this question, it is given that
Leanne has a gas card that has $150 on it. She spends $25 a week on gas.
And we have to Write a recursive rule that represents the amount of money she has on her gas card after the first week .
Recursive rule shows the relationship between previous value and the current value .
And here, the recursive rule is
Where a(n-1) is the initial amount which is $150 . And a(n) is the amount after n week .
So for n=1, that is amount in the card after 1 week, we will get
And that's the amount remaining in the card after 1 week .