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DochEvi [55]
2 years ago
11

Walter is helping to make cookies for a basketball tournament. He's made 15 cookies so far. His coach asked him to make at least

20 cookies but no more than 55. Solve the inequality and interpret the solution.
Mathematics
1 answer:
Hoochie [10]2 years ago
4 0

Answer:

5\leq x\leq 40

Here, x denotes the additional cookies that need to be made by Walter besides 15 cookies made by him so far

Step-by-step explanation:

Number of cookies made by Walter so far = 15

He is asked by his coach to make at least 20 cookies but no more than 55.

Let x denotes the additional cookies that need to be made by Walter besides 15 cookies made by him so far.

The inequality is 20\leq x+15\leq 55

Now solve this inequality.

20\leq x+15\leq 55\\20-15\leq x\leq 55-15\\5\leq x\leq 40

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7 0
2 years ago
Can someone please help me.
Katena32 [7]
Given 
- f(n) values for n=1,2,3,4
- possible candidates for the function

Solution:
Method: Evaluate some of the values, for each function.  A function with ANY value not matching the given f(n) values will be rejected.

N=1, f(n)=4
f(1)=4-3(1-1)=4
f(1)=4+3^(1+1)=4+3^2=4+9=13 ≠ 4   [rejected]
f(1)=4(3^(n-1))=4(3^0)=4
f(1)=3(4^(n-1))=3(4^0)=3*1=3  [rejected]

N=2, f(n)=12
f(1)=4-3(2-1)=4-3(1)=1 ≠ 12   [rejected]
[rejected]
f(1)=4(3^(2-1)=4*3^1=4*3=12
[rejected]

Will need to check one more to be sure
N=3, f(n)=3
[rejected]
[rejected]
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[rejected]

Solution: f(n)=4(3^(n-1))










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