There are 10 contestants in a race. You want to determine how many ways there could be a1st, 2nd, and 3rd place winner. Important: First decide whether you are doing a Permutation or Combination, then go ahead and calculate the Permutation or Combination

Answers

Answer 1

Answer:

Answer:

720 different ways

Step-by-step explanation:

To decide whether you are doing a Permutation or Combination, ask yourself if order matters. If the order of things is important then it is a permutation question, if the order doesn't matter then it is a combination question.

In this case, the order is important because there is a difference who will be the first place winner, the second place winne and the third place winner.

Use permutation formula:

$P^(10)_3=(10!)/((10-3)!)=(10!)/(7!)=(7!\cdot 8\cdot 9\cdot 10)/(7!)=8\cdot 9\cdot 10=720$

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Becky adds 3/4 gallon of gasoline into her snow thrower's empty fuel tank. She uses 1/4 gallon for the snowstorm on Friday, and then uses another 1/4 gallon for the snowstorms on Sunday. Is the fuel tank empty after becky uses the snow thrower on Sunday? Explain. If her fuel tank is not empty again, what single action could have been changed so that it is empty again? Explain.

Answers

Amount of fuel in the tank before the story begins . . . . . zero.

Total amount poured in . . . . . 3/4 gallon.

Total amount burned:
   on Friday . . . . . 1/4 gallon
   on Sunday . . . . 1/4 gallon
   Total used . . 1/2 gallon .

Amount remaining in the tank on Monday:

   (3/4 gallon in) - (1/2 gallon burned) = 1/4 gallon left.
      ==> NOT empty

The tank would have been empty on Monday IF Becky
had poured in only 1/2 gallon, instead of 3/4 of a gallon
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Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 13 are wearing jackets and 7 are not. What is the experimental probability that the next person to enter the store will be wearing a jacket?

Answers

Answer:

13/20

Step-by-step explanation:

maybe 1.857, if not the question is wrong

60 divided by 53.4. how to get the answere

Answers

60/ 53.4 = 60/ (53 4/10) = 60/(534/10) = (60/1)/(534/10) = (60/1) x (10/534) = (60 x 10)/(1 x 534) = 600/534 = 100/89 = about 1.12

sixty divided by 53.4 would be 1.12

BRAINLIEST IF CORRECT PLEASE USE WORK!What is the x-intercept of the line with this equation 1/3x+y=−15 ?

Enter your answer in the box.

Answers

y-ordinate of x-intercept is 0 .Putting y = 0 in the equation we get 1 3 x + 0 = − 15 or 1 3 x = − 15 or x = − ( 3 ⋅ 15 ) = − 45 ∴ x=intercept is ( − 45 , 0 ) graph{-1/3x-15 [-80, 80, -40, 40]}[Ans]

Hope this helped.

Your answer:

x-intercept is ( -45 , 0 )

Answer:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept: (−45,0)

y-intercept: (0,−15)

There are 26 baseball teams in the league. Each team has 18 players. Write a number sentence that will provide a reasonable estimate for the number of players in the league. Explain how you found your estimate

Answers

since one team has 18 players, and there are 26 teams, so it would be 26 times 18 which is 468 players

Greates common factor of 10,40

Answers

40: 2,2,2,5
10: 2,5
2 5
2*5=10
GCF is 10

The Greatest Common Factor (GCF) of 10 and 40 is : 2 and 5. Why? because both of these numbers fit evenly into 10 and 40.

I hope this's useful/helpful ! :)

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