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Mice21 [21]
2 years ago
9

An American car travels 32 miles on one gallon of gas. A European car travels 12.7 kilometers on one liter of gas. Which car get

s better gas mileage?
Mathematics
1 answer:
BabaBlast [244]2 years ago
5 0
32 miles is the same as 19.8839 kilometers

There are 3.78541 liters in a gallon

Now we divide the two. 

19.8839 / 3.78541 ≈ 5.25

The American car gets 5.25 km per liter. So the European car is better on gas economy. 
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HELP NOW!!!!
VMariaS [17]

Using the concept of probability and the arrangements formula, there is a  

0.002 = 0.2% probability that the first 8 people in line are teachers.

----------------------------------

  • A probability is the <u>number of desired outcomes divided by the number of total outcomes.</u>
  • The order in which they are positioned is important, and all people will be positioned, and thus, the arrangements formula is used to find the number of outcomes.

The number of possible arrangements from a set of n elements is given by:

A_n = n!

----------------------------------

The desired outcomes are:

  • First 8 people are teachers, in <u>8! possible ways.</u>
  • Last 4 are students, in <u>4! possible ways.</u>

Thus, D = 8! \times 4!

----------------------------------

For the total outcomes, <u>number of arrangements of 12 people</u>, thus:

T = 12!

The probability is:

p = \frac{D}{T} = \frac{8! \times 4!}{12!} = 0.002

0.002 = 0.2% probability that the first 8 people in line are teachers.

A similar problem is given at brainly.com/question/24650047

7 0
3 years ago
the image from reflecting a figure in the fourth quadrant over the y-axis. in what quadrant is the image is​
Alekssandra [29.7K]
It should be in the third quadrant
5 0
3 years ago
Please help! Three step linear equations
zzz [600]

Answer:

I solved it and my answer is - 2

Step-by-step explanation:

5x+6=8x+12

5x-8x =12 - 6

-3x =6

Divide by - 3

X=-2

6 0
3 years ago
Here's a more clear picture for you guys sorry the last one was fuzzy.
sergeinik [125]
RhTh + RsTs = 180    (Rh = 70, Rs=20 , Th = Ts)
70Th + 20Th = 180
90 Th = 180
Th = 2
since Th = Ts,
thus, Ts = 2


6 0
3 years ago
Find the difference:<br> -3/5 - (-5/9)
Stella [2.4K]

Answer:

-2/45

Step-by-step explanation:

-3/5 - (-5/9)

Subtracting a negative is like adding

-3/5 + 5/9

Get a common denominator of 45

-3/5*9/9    + 5/9 *5/5

-27/45 + 25/45

-2/45

6 0
2 years ago
Read 2 more answers
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