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Ulleksa [173]
3 years ago
10

A bag contains 5 white 6 red 3 purple and 4 yellow marbles. What is the theoretical probability that the marble draw is red

Mathematics
1 answer:
Sever21 [200]3 years ago
3 0

Answer:

6/18 which simplifies to 1/3

Step-by-step explanation:

you know that there are 6 reds so you put that on the numerator of the fraction and you add everything together to get the denominator. then the final answer is 6/18 and you simplify that to 1/3

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Ava has 55 quarts of potting mix. She uses 1 of the potting mix in the wall planter on her
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A person wants to place pavers to make a new backyard patio. The patio will measure 4 2/3 yards by 5 1/3 yards. If the pavers ar
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Answer:

$268.80

Step-by-step explanation:

#first convert the patio's dimensions to feet:

1 \ Yd= 3 \ ft\\\\4\frac{2}{3}\times 3=14\ ft\\\\5\frac{1}{3}\times 3=16\ ft

#We now calculate the patio's area in sq ft:

A=lw\\\\=14\times 16\\\\=224\ ft^2

#To determine the total cost of the pavers, we multiply by the cost  per sq foot;

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Hence, the pavers cost a total of $268.80

6 0
3 years ago
A vending​ machine's coin box contains​ nickels, dimes, and quarters. The total number of coins in the box is 252 . The number o
ohaa [14]

Answer:

Step-by-step explanation :

N = number of nickels

D = number of dimes

Q = number of quarters

`

252 = N + D + Q <---- Equation 1

D = 3(N+Q) <---- Equation 2

24.85 = 0.05N + 0.10D + 0.25Q <---- Equation 3

We a have set of three linear equations to solve for three unknowns N, D, and Q.

Rearranging the equations we have :

N + D + Q = 252

3N - D + 3Q = 0

0.05N + 0.10 D + 0.25Q = 24.85

Solving the set of linear equations, we end up with :

N = 49

D = 189

Q = 14

(see the attached images for the entire solution)

8 0
2 years ago
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