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Leona [35]
4 years ago
7

For each of the following problems, identify whether it is a permutation or combination problem, and then give the answer.

Mathematics
1 answer:
Naddika [18.5K]4 years ago
8 0

Answer:

See below.

Step-by-step explanation:

a) Permutation because the order of the batting matters.

Answer is 15P9 =  15! / (15 - 9)!

= 1,816,214,400

b)  Combination because the order of the 5 person squads does not matter.

Answer is 11C5 = 11! / 5!6!

= 462.

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A complete table with values for x or y that make this equation true:3x+y=15
Andreyy89

Answer:


Step-by-step explanation:

The given equation is: 3x+y=15,

Now, putting x=2 in above equation,

3(2)+y=15

y=15-6=9

Now, put y=3 in the given equation,

3x+3=15

3x=12

x=4

Putting x=6,

3(6)+y=15

y=15-18y=-3

Putting x=0,

0+y=15

y=15

Putting x=3,

3(3)+y=15

y=15-9

y=6

Putting y=0,

3x+0=15

x=5

Putting y=8,

3x+8=15

3x=7

x=\frac{7}{3}

4 0
3 years ago
Mary bought these art supplies: 4 paint brushes @ $1.29 each, 6 dowel rods @ $1.49 each, a jar of paste @ $1.25, and 2 canvases
Sophie [7]

Answer:

Option (1) is correct

The amount she receives back from $40 is  $12.65

Step-by-step explanation:

Given: Mary bought the art supplies.

4 paint brushes @ $1.29 each, 6 dowel rods @ $1.49 each, a jar of paste @ $1.25, and 2 canvases @ $6.00 each.

We have to find the change she get from $40.

We first find the total cost of the art supplies.

Since, she brought 4 paint brushes @ $1.29 each,

Thus, cost of 4 paint brush is  1.29 × 4 = $5.16

Also, 6 dowel rods @ $1.49 each,

Thus, cost of 6 dowel rods is  1.49 × 6 = $8.94

Thus, cost of 1 jar of paste  is $1.25

and 2 canvases @ $6.00 each

Thus, cost of 2 canvases  is $12.00

Thus, total cost of art supplies = 5.16 + 8.94 + 1.25 + 12 =$27.35

Thus, amount she receives back from $40 is $40 - $12.35 = $12.65

4 0
3 years ago
Read 2 more answers
A bag contains 3 blue coins and 9 red coins. A coin is removed at random and replaced by three of the other color. Part 1 out of
Aloiza [94]

Answer:

1/4

Step-by-step explanation:

Taking one coin out and replacing it with 3 other coins is the same as saying "What is the probability of picking one blue coin out of the 12 coins." Due to this, the answer should be 25%.

3 0
3 years ago
Read 2 more answers
A box has a width of 5 centimeters and a height of 6 centimeters. If the volume is 150 cubic centimeters, what is the length of
MrRa [10]

Answer: A. 5

Step-by-step explanation:

5 0
2 years ago
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Paolo is putting a fence around his pool. The length of the pool is 20 feet, the width is (20 minus x) feet, and the area of the
Nat2105 [25]

Answer:

(A) x=5

Step-by-step explanation:

  • The length of the pool is 20 feet,
  • The width is (20 minus x) feet; and
  • The area of the pool is 300 square feet.

Area = Length X Width

300 =20(20-x)

Opening the bracket on the right hand side

300 =400-20x

20x=400-300

20x=100

Divide both sides by 20

x=5

The value of x=5

3 0
3 years ago
Read 2 more answers
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