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mr Goodwill [35]
2 years ago
15

50 POINTS Mathematics

Mathematics
2 answers:
lara31 [8.8K]2 years ago
7 0

Answer:

(a) 0.8487

(b) 0.94

Step-by-step explanation:

Given:

  • P(A) = 0.11
  • P(B) = 0.83

(a) P(A or B) = P(A) + P(B) - P(P and B)

For independent events, P(P and B) = P(A)P(B)

⇒ P(A or B) = P(A) + P(B) - P(A)P(B)

= 0.11 + 0.83 - (0.11 · 0.83)

= 0.94 - 0.0913

= 0.8487

(b) P(A or B) = P(A) + P(B) = 0.11 + 0.83 = 0.94

victus00 [196]2 years ago
5 0

Answer:

Step-by-step explanation:

a) P(A or B) = P(A) x P(B)

P(A) x P(B) = 0.11 x 0.83 = 0.0913

b) P(A or B) = P(A) + P(B)

0.11 + 0.83 = 0.94

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50 people purchase item 5(the item 5 cost $18.94) seven of these customers use a coupon for 15% off. how much money do you make
andrezito [222]

Answer:

$927.113

Step-by-step explanation:

50-7=43

43×18.94=814.42

100-15=85

100%=18.94

what about 85%

85×18.94=1609.9÷100=16.099

16.099×7=112.693

814.42+112.693= 927.113

5 0
2 years ago
HELP ASAP! GIVING BRAINLIEST TO BEST ANSWERS FOR THESE 2 QUESTIONS!
Makovka662 [10]
<h3>Answer:</h3>
  1. Option A
  2. Option D
<h3>Solution:</h3>
  • In order to multiply fractions, we should multiply the numerator of the first fraction times the numerator of the second fraction, like so:
  • 3•5=15
  • Do the same with the denominator:
  • 10•7=70
  • 15/70 is the answer.
  • Same with the other fractions:
  • 7•2=14
  • 10•4=40
  • Hence, 14/40 is the answer.

Hope it helps.

Do comment if you have any query.

3 0
2 years ago
Read 2 more answers
Can anyone PLEASE HELP ME!!!????
Agata [3.3K]
The measure angle CD is 180 degrees be uase a straight line is 180 degrees and the measure of angle bpd is 64 degrees because both angles are on a straight line which is 180 degrees so 180-116=64 so the measure is 64.
4 0
3 years ago
A shop has a 3 for 2 offer on chocolate bars The normal price of a chocolate bar is 72p Sian gets 3 chocolate bars from the shop
Agata [3.3K]

Answer:

1.44 pounds

Step-by-step explanation:

From the above question, we are told that:

The shop has 3 for 2 offer on chocolate bars going on .This means a customer can buy 2 chocolates get 1 free, for the price of 2 chocolates, a customer can get 3 chocolates.

If the price of 1 chocolate bar = 72p

2 chocolate bars =

72p × 2

= 144p

Hence, Sian spends 144p

We are asked to convert our answer to pounds

The symbol p represent pence in money form

Hence,

100p(pence) = 1 pound

144p(pence) = x

100p × x = 144p × 1

x = 144p/100p

x = 1.44 pounds

Therefore, Sian spends 1.44 pounds

7 0
3 years ago
Find the unit rate:<br><br> $1.32 for 12 ounces<br><br> plz help
iren2701 [21]

Answer:

<h2>$0.11 per ounce</h2>

Step-by-step explanation:

$1.32/12oz = x/1oz

Cross Multiply.

1.32 = 12x

Divide both side by 12.

1.32/12 = x

Convert to decimal.

$0.11 for 1 ounce

3 0
2 years ago
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