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3 years ago

A card is drawn from a standard deck of 52 playing cards. find the probability that the card is an ace or a black card.

1 answer:

3 0

answer:28/52 chance aka 54% chance

Work:
Prob(ace or black card)= Prob(ace) + Prob(black card) - P(ace and black card)

=4/52 + 26/52 -2/52
=28/52

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There are 10 playing cards in a bag. 7 of those cards are spades.

Hoochie [10]

Answer:

P(spades) = 7/10

Step-by-step explanation:

there are 10 different cards that can be picked, out of which what we want to pick is spades which are 7. and so there are 7 chances that we will get to pick spades out of all the 10 possibilities. hope it is easy to understand

8 0

3 years ago

Will mark correct answer brainly.

Furkat [3]

Answer:

Step-by-step explanation:

Volume of Cone =1 \div 3 \times \pi \times r { \times h}^{2}1÷3×π×r×h

4 0

2 years ago

Pls help me and show work pls

ElenaW [278]

3/6 cause there are 3 evens and 3 odds on a dice

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3 years ago

1+4x/6=3.5 What is x

bagirrra123 [75]

Answer:

x=3+3/4

Step-by-step explanation:

1+4x/6=3.5

We move all terms to the left:

1+4x/6-(3.5)=0

We add all the numbers together, and all the variables

4x/6-2.5=0

We multiply all the terms by the denominator

4x-(2.5)*6=0

We add all the numbers together, and all the variables

4x-15=0

We move all terms containing x to the left, all other terms to the right

4x=15

x=15/4

x=3+3/4

3 0

3 years ago

Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the

nlexa [21]

Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the hole for a tree that is 17feet high.

Calculations

$\frac{DEEP}{HIEGHT}$

Cross multiplication

$\frac{3 DEEP}{5 HIEGHT}$ = $\frac{x}{13}$

5x = 2 x 13

Divide by 5 to isolate x

$\frac{5x}{5}$ = $\frac{51}{5}$

x = 10.2

Answer = 10.2

4 0

4 years ago

Read 2 more answers