1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dexar [7]
4 years ago
6

Drinking and Driving Among High School Students The percentage of high school students who drink and drive stood at 17.5% at the

beginning of 2001 and declined linearly to 10.3% at the beginning of 2011.
a. Find a linear function f(t) giving the percentage of high school students who drink and drive in year t, where t=0 corresponds to the beginning of 2001.
b. At what rate was the percentage of students who drink and drive dropping between 2001 and 2011?
c. If the trend continues, what will the percentage of high school students who drink and drive be at the beginning of 2014?
Mathematics
1 answer:
Vikki [24]4 years ago
6 0

Answer:

Step-by-step explanation:

The percentage of high school students who drink and drive at the beginning of 2001   =   17.5%

The percentage of high school students who drink and drive at the beginning of 20011   =   10.3%

Rate of decrease = 17.5 - 10.3 / 10

= .72

The required linear function

f(t) =  - 0.72 x t + 17.5

b ) Rate of decrease in percentage = (17.5 - 10.3) / 10

= .72 %

c )  Percentage of high school students who drink and drive  at the beginning of 2014

t = 2014 - 2011 = 13

f(t) =  - 0.72 x t + 17.5

= - .72 x 13 + 17.5

= 8.14 %

You might be interested in
(−7c+8d)0.6<br><br> khan academy pls help.
Burka [1]

Answer:

  • \sf -4.2c+4.8d

Step-by-step explanation:

\sf \left(-7c+8d\right)\cdot \:0.6

\sf 0.6\left(-7c+8d\right)

Apply distributive property

\sf 0.6\left(-7c\right)+0.6\times \:8d

\sf -4.2c+4.8d

Have a good day!

4 0
3 years ago
What is the solution to this system of equations? -5.9 x-3.7 y = -2.1. 5.9 x + 3.7 y = 2.1. a. (0, Negative 2.1) b.(0, 2.1) c. i
fenix001 [56]

Assuming your system of equations is

\begin{cases}-5.9 x-3.7 y = -2.1\\ 5.9 x + 3.7 y = 2.1\end{cases}

The answer is C. Infinitely many solutions. If my assumption is incorrect, then the answer will be likely different.

The reason why it's "infinitely many solutions" is because the first equation is the same as the second equation. The only difference is that everything was multiplied by -1. You could say that both sides were multiplied by -1.

Both equations given graph out the same line. They overlap perfectly yielding infinitely many solution points on the line.

8 0
4 years ago
Read 2 more answers
Adm,Ming,and Clinton sold sandwiches in the ratio 4:7:3 to raise money for their scout troop.Ming sold 91 sandwiches. How may sa
bonufazy [111]
The ratio in which Adm, Ming and Clinton sold sandwiches = 4:7:3
Number of sandwiches sold by Ming = 91
Let us assume the common ratio to be = x
Then
7x = 91
x = 91/7
  = 13
Then
The number of sandwiches sold by Adm = 4 * 13
                                                                   = 52
The number of sandwiches sold by Clinton = 3 * 13
                                                                      = 39
So
The total number of sandwiches
 sold by Adm, Ming and Clinton = 52 + 91 + 39
                                                  = 182.
So a total of 182 sandwiches were sold by Adm, Ming and Clinton.
 
7 0
4 years ago
A survey of 75 students was conducted to find out where the seventh grade wanted to go to visit College colleges and universitie
Nat2105 [25]
For this question, we need to find the unit rate. 7.5 is 10% of 75 (which we can find by dividing 75 by 10). Then, in order to get 30 from this, we would have to multiply 7.5 x 4. Because we multiplied this by 4, that hints to us that 40% of 75 is 30. With this knowledge, we can find 40% of 300, which when doing the math would be 120. Therefore, because 30/75 students would want to go to Clemson University, that means 120 students out of 300 would want to go to Clemson University. Thus, our answer is 120 students
4 0
2 years ago
Look at the figure above: If the measure of &lt;MNL is 43°, find the measures of the following angles. Be sure to justify each m
zimovet [89]

Answer:

NP = 43

LNO = 137

MNP = 137

Step-by-step explanation:

MNL is a vertical angle to PNO, therefore they are equal

MNL = PNO

MNL = 43 = PNO

MNL and LNO are supplementary angles.  They add to 180 degrees

MNL + LNO = 180

43+LNO = 180

Subtract 180 from each side

43-43 +LNO = 180-43

LNO = 137

LNO and MNP are vertical angles.  Vertical angles are equal

LNO = MNP

137=MNP

3 0
3 years ago
Other questions:
  • 5,-20,80 find the next two terms
    15·1 answer
  • W=5+3(x-1) what is x
    10·1 answer
  • Zack flips a coin and rolls a numbet cube with side labeled 1 to 6. What is the propability that he gets heads and a number grea
    14·1 answer
  • What goes next 0.125,0.25,0.375, ,
    7·2 answers
  • Hayley bought a bike that was on sale with a 15% discount from the original price of $142. If there is a 6% sales tax to include
    8·1 answer
  • 2. a. How could you distinguish between traveling west at 5 miles per hour and
    15·1 answer
  • The ratio for 42 pens : 35 pencils as a fraction is
    13·2 answers
  • A cake is a rectangular prism with height 3 inches and bases 8 inches by 10 inches. Samantha wants to apply frosting to the side
    9·1 answer
  • Please help me! Question is on image below.<br><br><br><br><br><br> Yo peeps Baby yoda is so cute!
    6·1 answer
  • Calculate the percent of increase for the $49 video game that is now being sold for $300.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!