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Ivenika [448]
3 years ago
15

In a survey, 15 high school students said they could drive and 15 said they could not. Out of 60 college students surveyed, 30 s

aid they could drive. Micah concluded that if someone is in college, that means the person is more likely to drive. Is Micah’s conclusion correct? Explain.
Mathematics
2 answers:
castortr0y [4]3 years ago
7 0

Answer:

No

Step-by-step explanation:

In the high school survey, it said 15 could drive and 15 could not. This means that 1/2 could drive and 1/2 could not.

In the college survey, it said that 30 could drive out of 60. That is still 1/2 of the people asked.

The ratios are the same so therefore Micah's conclusion is wrong

Irina-Kira [14]3 years ago
6 0

Answer:

sample answer

No, Micah is not correct. Since there are equal numbers in the group that drive and the group that doesn’t drive, the relative frequency for each is 50%. Because the relative frequencies are the same, there is no association between the variables.

Step-by-step explanation:

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Watch help video
Evgen [1.6K]

Answer:

20 dimes and 2  quarters

Step-by-step explanation:

x = number of dimes

y  = number of quarters

minimum is greater than or equal to ≥

x+y ≥16

no more than is less than or equal to ≤ ,

value of dime is $ 0.10

value of quarter is $0.25 so

0.10x + 0.25y ≤ 3.00

Rewrite inequalities in terms of y:

y ≥16 - x

(0.25/0.25)y ≤ (3.00/0.25)-(0.10/0.25)x→

y≤12 - 0.4x

Graph system: see file

6 0
3 years ago
Which of the following gives a valid reason for using the given solution method to solve the system of equations shown? Equation
alukav5142 [94]

Answer:

* Elimination; a coefficient in Equation I is an integer multiple of a coefficient in Equation II.

* Elimination; a coefficient in Equation II is an integer multiple of a coefficient in Equation I.

Step-by-step explanation:

Equation I: 4x − 5y = 4

Equation II: 2x + 3y = 2

These equation can only be solved by Elimination method

Where to Eliminate x :

We Multiply Equation I by a coefficient of x in Equation II and Equation II by the coefficient of x in Equation I

Hence:

Equation I: 4x − 5y = 4 × 2

Equation II: 2x + 3y = 2 × 4

8x - 10y = 20

8x +12y = 6

Therefore, the valid reason using the given solution method to solve the system of equations shown is:

* Elimination; a coefficient in Equation I is an integer multiple of a coefficient in Equation II.

* Elimination; a coefficient in Equation II is an integer multiple of a coefficient in Equation I.

4 0
3 years ago
You miss 3 out of 10 questions on a science quiz and 4 out of 15 questions on a math quiz. Which quiz has a higher percent of co
EastWind [94]
3 out of 10 quiz because if you divide 3 by 10 it's 0.3 but if you do 4/15 it's 0.26...
8 0
3 years ago
Read 2 more answers
The measurement of a pressure valve starts at 36 psi and falls to 30 psi. What is the approximate percent decrease in the readin
lukranit [14]

Answer:the answer is a 17psi

Step-by-step explanation:

6 0
3 years ago
Helpppppppppppppppppppppppppppppppppppppppp
Anit [1.1K]

When we have exponents like such (x^-6)^-2 , the numbers are multiplying, so we have x^12, then we take that value and, because it is dividing with the same base, we substract the numbers, so x^12-(-4) = x^16.

5 0
3 years ago
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