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
Finger [1]
3 years ago
8

At a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. Of those who pump

regular, 30% pay at least $30. Of those who pump midgrade, 50% pay at least $30. And of those who pump premium, 60% pay at least $30. (a) What is the probability that the next customer pumps premium gas and pays at least $30? (b) What is the probability that the next customer pays at least $30? (c) What fraction of customers who pay at least $30 pump premium gas?
Mathematics
1 answer:
Aleks04 [339]3 years ago
6 0

Answer:

0.150,0.595

Step-by-step explanation:

Given that at a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. Of those who pump regular, 30% pay at least $30. Of those who pump midgrade, 50% pay at least $30. And of those who pump premium, 60% pay at least $30.

               Regular gas          Midgrade         Premium gas      Total

Percent      40                            35                     25                   100

atleast 30   30%                         50%                 60%

a) The   probability that the next customer pumps premium gas and pays at least $30

=0.25*0.60\\=0.150

b)        the probability that the next customer pays at least $30

= P(regular and pays atleast 30%)+P(premium and pays atleast 30%)+P(midgrade and       pays atleast 30%)

=0.40*0.30+0.35*0.50+0.25*0.60\\=0.12+0.175+0.30\\=0.595                  

You might be interested in
A small local bakery pre-ordered apple and pumpkin pies to be picked up the day before Thanksgiving. Apple pies were $15 each an
vampirchik [111]

Step-by-step explanation:

15×42=630

12×56=673

42 apple

56 pumpkin

7 0
3 years ago
⚠️Help ya boi with this question⚠️
jonny [76]

Answer:

ITS 21

Step-by-step explanation:

4 0
3 years ago
Given that (12,3) is on the graph of f(x), find the corresponding point for the function 8f(x)
Paha777 [63]
When the function is multiplied by a number, in this case f(x) is being multiplied by 8, the outcome of the function is multiplied by 8. So, if you were to still input 12 as x, you would get an output that is 8 times the original. 3 • 8 = 24. The new point would be (12, 24).
5 0
4 years ago
Neela is making rectangular place mats that are 12 inches wide and 15 inches long. What is the least amount of ribbon that she w
schepotkina [342]
Believe it or not, :), the width of the ribbon needs to be known to get the right answer.  If the ribbon had an infinitely small width the ribbon needed would just be the perimeter.

P=2(L+W)

P=2(12+15)

P=54 in

However an infinitely small width is not something that has any practical application.  For example, if the width of the ribbon were 1/2 in.

P=2((L+1)+W)

P=2(16+12)

P=56 in  So the perimeter increased by 2 in when the ribbon was only 1/2 in wide.

The "infinitely small" width and the perimeter of 54 in is only a decent approximation if the ribbon were a very thin string.
8 0
4 years ago
What number should be placed in the box to help complete the division calculation?
nalin [4]

Answer:

780

Step-by-step explanation:

17 is the divisor, while 2635 is the dividend. So that,

\frac{2635}{17} = 155

The quotient = 155 = 1 hundreds, 5 tens and 5 units

Also,

2635 - 1700 = 935

Hence, let the unknown value be represented by x. Then;

935 - x

The answer of the subtraction should be equal to the quotient of the division.

935 - x = 155

935 - 155 = x

780 = x

Therefore the unknown value represented by a box is 780.

7 0
4 years ago
Read 2 more answers
Other questions:
  • Cassie has1/2lb of sugar. Her cake recipe calls for 2/10 of a lb of sugar. How many cakes can she make?
    14·2 answers
  • Use the numbers to place the companies in order of greatest comparative advantage to least comparative advantage in
    11·2 answers
  • Complete the equation for the linear function whose graph contains the point (-1,2) and has a slope of 0.9.
    5·1 answer
  • Solve this equation: –9h – 6 + 12h + 40 = 22.
    15·1 answer
  • Using the figures below, what is the perimeter of the 5th rectangle in the pattern?
    6·2 answers
  • Linsey can work at most 20 hours a week<br> A. x&lt;20 B. x&gt;20 C. x&lt;=20 D. x&gt;=20
    11·2 answers
  • A football is thrown from the stadium. The height of this football can be represented by the polynomial -16t2 +32t + 20, where t
    11·1 answer
  • If someone could help that'd be cool
    11·2 answers
  • (x+3)^0 Rewrite the equation with positive exponents and simplify. x≠-3.
    5·1 answer
  • 16. Which statement about the sum is true? 1 + 1. The sum is greater than 1 and less than 2. O The sum is greater than 2 and les
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!