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LuckyWell [14K]

4 years ago

7

1. Selecting a red card from a deck of cards. A deck of cards has 13 red hearts, 13 red diamonds, 13 black spades, and 13 black

clubs.?
2. Selecting a diamond from a deck of cards.?

1 answer:

DedPeter [7]4 years ago

7 0

Answer:

1. 50%

2. 25%

or

1. 26/52 (simplify= 13/26)

2. 13/52

Step-by-step explanation:

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What is the solution to the system of equations <br><br> 3x+2y=39<br> 5x-y=13

Marta_Voda [28]

3x + 2y = 39

5x - y = 13

Multiplying the last by two:

10x - 2y = 26

Adding to the first

13x = 65

x = 5

y = 5x-13 =25-13=12

Check:

3(5)+2(12)=39 good

5(5)-12=13 good

Answer: x=5, y=12

8 0

3 years ago

Round 823 to the nearest ten

bulgar [2K]

820

bc it is not 825 or higher it stays the same

4 0

3 years ago

Read 2 more answers

Hich is the joint relative frequency for the people who can only see the sunset?

UNO [17]

Answer:

12/38

Step-by-step explanation:

7 0

3 years ago

What is a solution to (x + 6)(x + 2) = 60?

Reika [66]

Solution of the equation $(x+6)(x+2)=60$ is x=4 and x=-12

Step-by-step explanation:

We need to solve the equation: $(x+6)(x+2)=60$

Solving:

$(x+6)(x+2)=60$

Multiplying terms on the left hand side

$x(x+2)+6(x+2)=60$

$x^2+2x+6x+12=60$

$x^2+8x+12=60$

$x^2+8x+12-60=0$

$x^2+8x-48=0$

Now factorizing:

$x^2+12x-4x-48=0$

$x(x+12)-4(x+12)=0$

$(x-4)(x+12)=0$

$(x-4)=0\,\,and\,\,(x+12)=0$

$x=4\,\,and\,\,x=-12$

So, solution of the equation $(x+6)(x+2)=60$ is x=4 and x=-12

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

5 0

3 years ago

Brad is having a party and buys a large cube of cheddar cheese at the market. The cube is 4 inches in height. When Brad gets hom

Naddika [18.5K]

Answer:

32 cubic inches

Step-by-step explanation:

4^3= 64

64/2= 32

3 0

3 years ago