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3 years ago

The Ray family went out to dinner.

Mathematics

1 answer:

sergeinik [125]3 years ago

7 0

Answer:

49.18$

Step-by-step explanation:

Price of meal = 38.95$

sales tax = 7%

Price after sales tax = 38.95 + 7% of 38.95

=> 38.95 + 7/100 * 38.95

=> 38.95 + 2.73

=> 41.68$

Tip on meal plus sales tax = 18%

Therefore, the money ray family pay is = 41.68 + 18/100 *41.68

=> 41.68 + 7.50

=> 49.18$

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Joe’s annual income has been increasing each year by the same dollar amount the first year his income was 19,500. 8 years later

Anna007 [38]

Answer:

The question is either poorly constructed or it is a trick question. We do not know "In what year was his income 30,300" because the years correlating to his income are not disclosed. Even assuming the question was meant to be posed as "how many years later was his income 30,300" it is still flawed.

Step-by-step explanation:

To arrive at Joe's annual income increase, first subtract 19,500 from 27,900 to get 8400, which is his overall increase over the 8 years. Now divide 8400 by 8. You will get 1050. Beginning with his income of 27,900, add 1,050 to each successive income amount and you will get the following progression:

27,900, 28,950, 30,000, 31,050, 32,100, 33,150, 34,200, 35,250, 36,300.

Therefore, two years after his income was 27,900 it would be 30,000 and 6 years after that it would be 36,300. It would never be 30,300.

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2 years ago

How do you identify the opposite and the absolute value of a rational number

Sergeeva-Olga [200]

Rational numbers are the numbers that can be written as the fraction of two integers and absolute value is the distance a number is away from 0. If we look at a number line, the absolute value is the distance any number on the number line is away from 0. Distance is always positive, so our absolute value is always 0.

8 0

3 years ago

An airline company is considering a new policy of booking as many as 191 persons on an airplane that can seat only 180. (Past st

notka56 [123]

Answer:

1.3559644*10^-^5

Step-by-step explanation:

From the information given we extract the following data

Total Number of Trials (N) = 191

Required Value (x) = 181 (notice it is not 180 since at that value we have enough passengers)

Odds of success (p) = 0.85

Using the binomial formula for calculating probability, i.e.

$P(x; N, p) = nCx * p^x *(1-p)^{N-x}$

Inputting the values

$P(181; 191, 0.85) = 191C181 *0.85^{181} *(1-0.85)^{191-181} \\ P(181; 191, 0.85) = 1.3559644*10^-^5$

3 0

2 years ago

PLZZZ HELP ON THIS I"M TRYING MY BEST BUT I NEED HELP PLZZZZZZZ HELP ME IT IS 50 POINTS!!!!

Yakvenalex [24]

Answer:

1. 142. 2. adjacent angles.

Step-by-step explanation:

1. because it is less then 180, that would be flat, and it is bigger then 132.

2. because they are adjacent to each other.

7 0

2 years ago

A set of data with 750 numbers is normally

kifflom [539]

Answer:

510

Step-by-step explanation:

(0.68)750

shift decimal places

510.00

refine:510

6 0

3 years ago