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vesna_86 [32]
3 years ago
11

Lin's father is paying for a $20 meal. He has a 15%-off for the meal. After the discount, a 7% sales tax is applied. What does L

in's father pay for the meal?
Mathematics
1 answer:
MissTica3 years ago
6 0

Answer:

18.19

Step-by-step explanation:

$20-15%=$17

$17+7%=18.19

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Write two conditionals from each biconditional
bearhunter [10]

Two conditionals from each biconditional are

  • (1) A month has exactly 28 days (2) It is February
  • (1)Two angels are complementary  (2) The measures of the angles add up to 90
  • (1) The area of square s^2 (2) The perimeter of the square is 4s

<h3>How to write two conditionals from each biconditional?</h3>

A biconditional statement is represented as:

if and only if p, then q

From the above biconditional statement, we have the following conditional statements

Conditional statement 1: p

Conditional statement 2: q

Using the above as a guide, the conditional statements from the biconditional statements are:

<u>Biconditional statement 30</u>

  • A month has exactly 28 days
  • It is February

<u>Biconditional statement 31</u>

  • Two angels are complementary
  • The measures of the angles add up to 90

<u>Biconditional statement 32</u>

  • The area of square s^2
  • The perimeter of the square is 4s

Read more about biconditionals at

brainly.com/question/27738859

#SPJ1

3 0
1 year ago
Helen plays basketball. For free throws, she makes the shot 75% of the time. Helen must now attempt two free throws. The probabi
CaHeK987 [17]

Answer: 0.6375

Step-by-step explanation:

Let's assume that the event that she'll make the first shot is given as P(A) while making the second shot is P(B). Therefore, P(A/B) = 0.85

Therefore, the probability that she makes both free throws will be denoted as:

= 0.75 × 0.85

= 0.6375

3 0
3 years ago
A cheetah can run 70 miles per hour. What is this speed in feet per hour
GarryVolchara [31]

If I am correct the answer is 369,600 feet per hour.

7 0
3 years ago
Read 2 more answers
What is the unit rate for the ratio 100 points/ 4 games?
wlad13 [49]

Answer:c

Step-by-step explanation:

 

7 0
2 years ago
Records indicate that for parts coming out a hydraulic repair shop at an airplane rework facility, 30\% will have a shaft defect
mrs_skeptik [129]

Answer:

P(A|B) = P(A∩B)/P(B) = 100%

Which means that there is 100% probability that the item has at least one type of defect given that the item has only a shaft defect.

Step-by-step explanation:

Conditional probability P(A|B) can be expressed as;

P(A|B) = P(A∩B)/P(B) .....1

Given;

30% will have a shaft defect,

15% will have a bushing defect,

and 65% will be defect-free

Total probability = 100% = P(shaft or/and bushing defect) + P(defect free)

P(shaft or/and bushing defect) = 100% - P(defect free)

= 100% - 65% = 35%

And

P(shaft or/and bushing defect) = P(shaft def only) + P(bushing def only) + P(shaft and bushing defect)

P(shaft or/and bushing defect) = P(shaft defect) + P(bushing defect) - P(shaft and bushing defect)

Substituting the values we have;

35% = 30% + 15% - P(shaft and bushing defect)

P(shaft and bushing defect) = 45% - 35% = 10%

Let A="The item has at least one type of defect"; and B="The item has only a shaft defect".

P(A) = P(shaft or/and bushing defect) = 35%

P(B) = P(shaft only defect) = 30% - 10% = 20%

P(A∩B) = 20%

Substituting into equation 1

P(A|B) = P(A∩B)/P(B) = 20%/20%

P(A|B) = 1/1 = 100%

Which means that there is 100% probability that the item has at least one type of defect given that the item has only a shaft defect.

5 0
3 years ago
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