2 years ago

A card is selected at random from a standard deck. find each probability. randomly selecting a club or a 3

1 answer:

5 0

A deck has 52 cards
There were are 13 clubs
There are 4 cards with "3" but one of them is a club, so there are 3.
P (club or 3) = (13 + 3) / 52 = 4/13

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Which fraction represents this graph?

olga nikolaevna [1]

B. y=2x+3 is your answer

8 0

2 years ago

If a cube of metal measures 3 cm on each side and has a mass of 216 g what is the density of the metal

ohaa [14]

The formula of density is mass / volume.
So, the volume is equal to the area of the cube by the total height, so the area of the cube is 3x3= 9, and this result multiplied by the height, 9x3 = 27.
Following the formula of density, we have 216 g / 27 cm^3, the result is 8 g/cm^3.
Hope you undestand my procedure XD

4 0

3 years ago

Read 2 more answers

Solve: 4|x| = 32 A. 8 B. 24 C. -8 or 8 D. No solution

kirill [66]

C. -8 or 8

4 |-8| = 4*8 = 32 4 |8| = 4*8 = 32

5 0

2 years ago

At a football stadium, 4% of the fans in attendance were teenagers. If there were 120 teenagers at the football stadium, what wa

Law Incorporation [45]

1200 divided by 4%= 3000

3 0

2 years ago

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
$Feet = 4*Pigs + 2*Chickens$
$Heads = Pigs + Chickens$

By back substitution:
$78 = 4*(27-Chickens) + 2*Chickens$
$78 = 108 -2*Chickens$
$-30 = -2*Chickens$
$Chickens= 15$

Then:
$27 = Pigs + 15$
$Pigs = 12$

To check:
$Feet = 4*Pigs + 2*Chickens$
$78 = 4*12 + 2*15$
$78 = 48 + 30$
$78 = 78$ CHECKS

6 0

3 years ago