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kifflom [539]
3 years ago
10

The Mitchell family is renting a boat for the day. The boat rental has a flat fee of $100 plus $20 for each hour. They have to p

ay for a whole hour even if they are not out on the lake for a whole hour. For example, if they rent the boat for 3 and one-half hours, they have to pay for 4 hours.
If they want to spend $250 or less on the boat rental for the day, how many hours can they rent the boat? Write an inequality and solve.
A) 100 + 20x ≤ 250; They can boat for 7 hours.
B) 100 + 20x ≥ 250; They can boat for 8 hours.
C) 100 + 20x ≤ 250; They can boat for 8 hours.
D) 100 + 20x ≥ 250; They can boat for 7 hours.

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
7.5 and if you round it it would be 8 hours
iren2701 [21]3 years ago
4 0
The inequality has to be pointing at 250 since that’s the maximum of money they can spend so B and D are out. If you did the math and solved it, the answer would be 7.5 and rounded up which is 8 hours.

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2w + 7 = 2(w + 5) - 8
BARSIC [14]

Answer:

no solution

Step-by-step explanation:

2w + 7 = 2(w + 5) - 8

Distribute

2w+7 = 2w+10-8

Combine like terms

2w+7 = 2w+2

Subtract 2w from each side

7 = 2

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7 0
3 years ago
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Step-by-step explanation:

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5. Let f be a continuous and differentiable function for all real numbers. The only critical points for f are located
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2 years ago
F(x)=(5x+3)(x−2)(3x+7)(x+5) has zeros at x = -5, x = -7/3, x = 2
musickatia [10]

The sign of f on the interval -7/3 < x < -3/5 is always positive.

<h3>How to solve for the sign on the interval</h3>

We have the equation

(5x+3)(x−2)(3x+7)(x+5) > 0

Now when f(x) > 0

Then -7/3 < x < -3/5

This would tell us that the sign would become positive when it changes from the less than to greater than sign

<h3>Complete Question</h3>

f(x)=(5x+3)(x-2)(3x+7)(x+5) has zeros at x=-5, x=-7/3, x=-3/5, and x=2

What is the sign of f on the interval -7/3<x<-3/5?

answer choices

f is always positive on the interval

f is always negative on the interval

f is sometimes positive and sometimes negative on the interval

f is never positive or negative on the interval

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brainly.com/question/2833285

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5 0
2 years ago
A grocery stores studies how long it takes customers to get through the speed check lane. They assume that if it takes more than
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The probability that a randomly selected customer takes more than 10 minutes will be 8.38%

<em><u>Explanation</u></em>

The average or mean(\mu) is 8.56 minutes and standard deviation(\sigma) is 1.04 minutes.

<u>Formula for finding the z-score</u> is:   z= \frac{X-\mu}{\sigma}

So, the z-score for X= 10 minutes will be.....

z(X=10)=\frac{10-8.56}{1.04}=\frac{1.44}{1.04}=1.3846... \approx 1.38

Now, according to the standard normal distribution table,  P(z . So.....

P(X>10)=P(z>1.38)= 1-P(z

So, the probability that a randomly selected customer takes more than 10 minutes will be 8.38%

3 0
3 years ago
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