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yarga [219]
3 years ago
8

You randomly draw a marble out of a bag that contains 20 total marbles. 12 of the marbles in the bag are blue.

Mathematics
1 answer:
Advocard [28]3 years ago
6 0

Answer:

P(Blue)=0.60

Step-by-step explanation:

Probability: Probability\ of\ an\ event=\frac{favourable\ outcome}{total\ outcome}

Total\ marbles=20\\\\Hence\ total\ outcomes=20\\\\Blue\ marbles=12\\\\Hence\ favourable\ outcomes=12\\\\P(Blue)=\frac{12}{20}\\\\P(Blue)=\frac{2\times 6}{2\times 10}\\\\P(Blue)=\frac{6}{10}\\\\P(Blue)=0.60

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Last week, Latoya drove 259 miles. This week, she drove k miles. Using k, write an expression for the total number of miles she
swat32

Answer:

259+k=x

Step-by-step explanation:

x= total number of miles

3 0
2 years ago
Which expression is equivalent to 8(a+3)
Alex777 [14]

Answer:

8a + 24

Step-by-step explanation:

Use Distributive property: a(b +c) = a*b + a*c

Here a = 8 ;  b= a & c = 3

8(a + 3) = 8*a + 8*3

            = 8a + 24

8 0
2 years ago
Two equations are given below: a – 3b = 22 a = b – 2 What is the solution to the set of equations in the form (a, b)? (–10, –8)
aliya0001 [1]
Hi Kristian

a - 3b = 22
a = b - 2

We need to solve a = b -2 for a
First, we need to substitute b - 2 for a in a - 3b = 22
a - 3b = 22
b - 2 - 3b = 22
-2b - 2 = 22
 -2b = 22 + 2
-2b = 24
b = 24/-2
b = -12

Now substitute -12 for b in a = b - 2
a = b -2
a= -12 - 2
a= -14

Thus, the solution is a = -14 and b = -12

The correct option is the last one (-14,-12)


If you have questions about my answer, please let me know.


Good luck! 

4 0
3 years ago
Jaime has 6 quarters and some dimes in his pocket . The total value of the coins in 4.50. How many dimes does he have in his poc
Alexxandr [17]

Hi there! :)

<u>Answer:</u>

Jaime has 30 dimes in his pocket.


Step-by-step explanation:

First off, you need to know that:

A <em>quarter</em> is equal to = <u>$0.25</u>

A <em>dime</em> is equal to = $0.10


Jaime has 6 quarters, which means that he has 6 times $0.25:

6 × 0.25 = <u>$1.50</u>


Jaime has a total of $4.50 → Subtract the amout of money represented by the quarters and you'll be left with the amout of money represented by the dimes:

4.50 - 1.50 = <u>$3</u>


Jaime has $3 worth of dimes in his pocket. In order to know how many dimes $3 represents, you'll need to divide "3" by 0.10, which is what 1 dime is worth:

3 ÷ 0.10 = <u>30</u> → YOUR ANSWER


There you go! I really hope this helped, if there's anything just let me know! :)

6 0
2 years ago
8. Factor the expression x3 + 6x – 5x2 completely.
Novosadov [1.4K]

Answer:

Factor the polynomial.

ANSWER:x(x-3)(x-2)

Step-by-step explanation:

3 0
2 years ago
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