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alexgriva [62]
3 years ago
9

If one card is randomly chosen from a standard deck, what is the probability that a black 7 is chosen? A. 2/52 B. 4/52 C. 7/52 D

. 26/52
Mathematics
2 answers:
aksik [14]3 years ago
7 0
The answer to your question is A
netineya [11]3 years ago
5 0

|\Omega|=52\\ |A|=2\\\\ P(A)=\dfrac{2}{52}\Rightarrow \text{A}

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Tyrone practices the piano for 120 min each week. Amina practices the piano 45% of the time that Tyrone practices each week. How
Margaret [11]

Answer:

Amina practices the piano for 54 minutes each week.

Step-by-step explanation:

45% * 120min = 0.45 * 120min = 9/20 * 120min = 9 * 6min = 54min

6 0
3 years ago
Unit test<br> 4% of a number is what fraction of that number?
AlexFokin [52]

Answer:

1/25

Step-by-step explanation:

Well, in order to figure this out, we need to figure out how many times 4 goes into 100, because it is 4 out of 100%.

So if you divide 100 by 4 you get 25, which means 4 goes into 100 25 times.

So the fraction would be 1/25 of the number.

Hope this helps :)

5 0
3 years ago
A scale model of the Vancouver Olympic cauldron is to be built in memory of the 2010 Olympics. If the scale to be used is 1:27,
timurjin [86]

Answer:

23/54 meters

Step-by-step explanation:

Assuming that the scale model is smaller, then the scale model should be 1/27th of the actual thing. Therefore:

11.5/27

= 23/54 meters tall

4 0
4 years ago
A snack bar sells two sizes of drinks. A large drink is $5 and a small drink is $3. In one day, they sold 60 drinks for a total
pshichka [43]

Answer:

Step-by-step explanation:

Given:

Cost of L = $5

Cost of S = $3

No. of drinks sold = 60 drinks

Total sale = $220

Solution:

L + S = 60 - (1) (multiplying by 3)

5L + 3S = 220 - (2)

(-)3L +(-) 3S = (-)180 - (1)

2L = 40

L = 40 / 2

L = 20 Large drinks

20 + S = 60

S = 60 - 20

S = 40 small drinks

Therefore, 20 large drinks and 40 small drinks

PLEASE MARK ME AS BRAINLIEST

7 0
3 years ago
Read 2 more answers
Do the ratios 9/4 and 11/6 make a proportion please explain. Thank You!
svetoff [14.1K]
No they're not proportionate because 9 divided by 4 = 2.25 and 11 divided by 6 is 1.83 so they're not the same in value
3 0
3 years ago
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