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Scrat [10]
3 years ago
11

If a backpack costs $25, how much will it cost, in dollars, after a 20% discount?

Mathematics
2 answers:
postnew [5]3 years ago
7 0

Answer:

20 dollars

Step-by-step explanation:

the difference  is 5 dollars

Readme [11.4K]3 years ago
6 0

Answer:

20 dollars

Step-by-step explanation:

After 20 percent is taken off there is 80 percent left so...

25 * .8 = 20

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A vase in the shape of a cube measures 8 inches on each side. The vase is half full of water. How many cubic inches of water are
Ne4ueva [31]

Answer:

256

Step-by-step explanation:

First find the volume of the cube, which is 8^3, or 512. Half of that is how much water there is, which is 256 in^3.

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3 years ago
Which is not true about the random sample method?
USPshnik [31]

B. The sample is likely to represent one portion of the population.

This is impossible to say because it's random.

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3 years ago
what is the solution of the system of equations? y = –2x 8 y = x – 4 a. (–1.33, –5.33) b. (4, 0) c. (0, 4) d. (–12, 32)
IRISSAK [1]
Y = -2x + 8 = x - 4
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3 0
2 years ago
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In a class of students, the following data table summarizes how many students passed a test and complete the homework due the da
Alexxandr [17]

20 / 27 is the probability that a student chosen randomly from the class passed the test or completed the homework.

<u>Step-by-step explanation:</u>

To find the probability that a student chosen randomly from the class passed the test or complete the homework :

Let us take,

  • Event A ⇒ a student chosen randomly from the class passed the test
  • Event B ⇒ a student chosen randomly from the class complete the homework

We need to find out P (A or B) which is given by the formula,

⇒ P (A or B) = P(A) + P(B) - P(A∪B)

<u>From the given table of data,</u>

  • The total number of students in the class = 27 students.
  • The no.of students passed the test ⇒ 15+3 = 18 students.

P(A) = No.of students passed / Total students in the class

P(A) ⇒ 18 / 27

  • The no.of students completed the homework ⇒ 15+2 = 17 students.

P(B) = No.of students completed the homework / Total students in the class

P(B) ⇒ 17 / 27

  • The no.of students who passes the test and completed the homework = 15 students.

P(A∪B) = No.of students both passes and completes the homework / Total

P(A∪B) ⇒ 15 / 27

Therefore, to find out the P (A or B) :

⇒ P(A) + P(B) - P(A∪B)

⇒ (18 / 27) + (17 / 27) - (15 / 27)

⇒ 20 / 27

∴ The P (A or B) is 20/27.

7 0
2 years ago
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