All categories

2 years ago

You are dealt one card from 52 card deck. Find the possibility that you are dealt a heart or a picture card

Mathematics

1 answer:

PIT_PIT [208]2 years ago

7 0

Answer:

Step-by-step explanation:

Since we have 13 heart card then

p(heart) = 13/52

Since we have 12 picture card then

p(picture) = 12/52

Since we have 3 heart and picture (at the same time) card then

p(heart∩picture) = 3/52

finally,

the possibility that you are dealt a heart or a picture card = p(heart or picture)

p(heart or picture) = 13/52 + 12/52 - 3/52 = 22/52

You might be interested in

Louisa ran at an average speed of five miles per hour along an entire circular park path. Calvin ran along the same path in the

docker41 [41]

Answer:

15 miles

Step-by-step explanation:

Let $x$ be the miles in the circular park path, $t_{L}$ the time Louisa takes to finish and $t_{C}$ the time Calvin takes to finish both in hours.

Then $x$ , the longitude is equal to the velocity times the time used to finish. So

$x=5t_{L}$

$x=6t_{C}$

And the difference between Louisa's time and Calvin' time is 30 minutes, half an hour. So:

$t_{C}=t_{L}-0.5$

Three equations, three unknowns, the system can be solved.

Equalizing the equation with x :

$5t_{L}=6t_{C}$

In this last equation replace $t_{C}$ with the other equation and solve:

$5t_{L}=6(t_{L}-0.5)\\ 5t_{L}=6t_{L}-3\\ 3=6t_{L}-5t_{L}\\ 3=t_{L}\\ t_{L}=3$

With Louisa's time find x:

$x=5t_{L}\\ x=5(3)\\ x=15$

7 0

2 years ago

A Similar Triangles Lesson Quiz

Naddik [55]

Answer: D. 72°

Step-by-step explanation:

3 0

1 year ago

Evaluate 3x2 - 1 when x = 2.

Shalnov [3]

Answer:C or 11

Step-by-step explanation:

3x²-1

First you insert x... which is 2

3(2)²-1

then you square the 2. (multiply it by itself)

3(4)-1

Then you multiply 3 by 4 to get 12

12-1

And then you subtract for your answer

4 0

2 years ago

Can y’all answer the middle one Ill mark you brainlist.

777dan777 [17]

Answer:

4.44 infinet

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

7 is ten times the value of _?

Natasha_Volkova [10]

Answer:

0.7

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers