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irinina [24]
1 year ago
15

A camera is selling for $7.50 off the regular price. It was marked down 15%. A student used the equation:

Mathematics
2 answers:
Sonbull [250]1 year ago
8 0

Answer:

A camera is selling for $7.50 off the regular price. It was marked down 15%.

Let the regular price be x

We can solve as follows:

x-0.15x=7.50

=> 0.85x=7.50

=> x = 8.82

The correct regular price is $8.82.

A student used the equation:

15(7.5) = Original price

and found the regular price of the camera to be $112.50.

The student did the wrong calculation. He simply took 15% of selling price.

He should have done 15% of regular price that will come to be the selling price.

andrezito [222]1 year ago
4 0

Answer:

The student should have divided the discounted amount by the percent. The percent should have been written as a decimal.

Step-by-step explanation:

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It costs $3 to bowl a game and $2 for shoe rental. a. Write an expression for the total cost (in dollars) of $g$ games. Expressi
Semmy [17]

Answer: a. Total cost = 3g+2

b. The total cost of 8 games is $26.

Step-by-step explanation:

Given: Cost to bowl a game = $3

Shoe rental charge = $2  (One -time charge)

Total cost = (Cost to bowl a game) x (Number of games)+ (Shoe rental charge )

Let g= number of games, then the expression to find the total cost will be :

Total cost = 3g+2

To find the total cost of 8 games, put g=8, we get

Total cost = 3(8)+2

= 24+2 = $26

Therefore , the total cost of 8 games is $26.

7 0
1 year ago
Consider the lengths of stay at a hospital’s emergency department. Hours Count Percent 1 18 3.44 2 55 10.50 3 81 15.46 4 109 20.
Vladimir [108]

Answer:

Probability = 0.502

Step-by-step explanation:

We are given the following data :

 Hours         Count            Percent

  1                    18               3.44

  2                    55              10.50

  3                    81               15.46

  4                    109             20.80

  5                     88              16.79

  6                     66              12.60

  7                     39               7.44

  8                     17                3.24

  9                     17                3.24

  10                   19                3.63

   15                  15                2.86

We need to calculate the probability

P(Length of stay of exactly 1 is less than or equal to 4)

P(Y \leq 4) = P(Y = 1) + P(Y = 2) + P(Y = 3) + P(Y = 4)

P(Y \leq 4) = 0.0344 + 0.1050 + 0.1546 + 0.2080 = 0.502

We convert the percent into probabilities by dividing them with 100. This gave us the required probabilities.

8 0
2 years ago
2.191919... as a fraction
larisa [96]

Answer:

See Bottom!

Step-by-step explanation:

This may seem bad, but the answer should be 2191919/1000000

If you require more assistance, please let me know at the bottom.

3 0
2 years ago
Read 2 more answers
Which of these ordered pairs is a solution to the inequality y – 2x ≤ –3?
Archy [21]
The answer is D.(1,-1) the reason is -1(y)-2*1(x)=-3 so, -1-2*1 is less than or equal to -3.
8 0
2 years ago
2.4 puzzle time how can you share five apples with seven friends
Grace [21]

1. The algebraic property of equality that is represented is the multiplication property. The answer is letter P.



2. The algebraic property of equality that is represented is the subtraction property. The answer is letter E.


3. The algebraic property of equality that is represented is the substitution property. The answer is letter M.


4. The algebraic property of equality that is represented is the division property. The answer is letter A.


5. The algebraic property of equality that is represented is the addition property. The answer is letter A.


6. The algebraic property of equality that is represented is the distributive property. The answer is Letter E.


7. The algebraic property of equality that are represented is the transitive property. The answer is letter is E.


8. The algebraic property of equality that are represented is the symmetric property. The answer is Letter A.


9. The algebraic property of equality that are represented is the reflexive property. The answer is letter C.


10. The algebraic property of equality that are represented by is the multiplication property. The answer is letter P.


11. The algebraic property of equality that are represented is the subtraction property. The answer is letter L.



12. The algebraic property of equality that are represented is the reflexive property. The answer is letter S.


13. The algebraic property of equality that are represented is the transitive property. The answer is letter U.


14. The algebraic property of equality that are represented is the symmetric property. The answer is letter K.


The given is 3 5 14 2  4 1 10 11 6 12 8 13 9 7


Plugging in the letters we got for each number, gives us MAKE APPLESAUCE.

6 0
2 years ago
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