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ira [324]
3 years ago
8

There are 58 students enrolled in an art class. The day before the class begins, 10.3% of the students cancel. How many students

actually attend the art class?
Mathematics
1 answer:
Sidana [21]3 years ago
7 0
First, set up a proportion. 10.3% is the percentage of students who cancelled, but the question is asking for the students who are attending, so let’s use 89.7% to make it easier. The proportion would be x over 58 is equal to 89.7% over 100%. Multiply 58 by 89.7, giving you 5,202.6. Next, take 5,202.6 and divide it by 100. This should give you 52. 026, but it’s best to round this to 52. 52 students actually attend the art class, making this your final answer.
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5k + (-7) = 13 what does k =
Scilla [17]

Answer:

k = 4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Step-by-step explanation:

<u>Step 1: Define</u>

5k + (-7) = 13

<u>Step 2: Solve for </u><em><u>k</u></em>

  1. Simplify equation:                             5k - 7 = 13
  2. Addition Property of Equality:          5k - 7 + 7 = 13 + 7
  3. Simplify equation:                             5k = 20
  4. Division Property of Equality:           5k/5 = 20/5
  5. Simplify equation:                             k = 4

<u>Step 3: Check</u>

<em>Plug in k into the original equation to verify it's a solution.</em>

  1. Substitute in <em>k</em>:                    5(4) + (-7) = 13
  2. Multiply:                               20 + (-7) = 13
  3. Add:                                     13 = 13

Here we see that 13 does indeed equal 13.

∴ k = 4 is the solution to the equation.

5 0
2 years ago
Read 2 more answers
Percent of decrease of 120 to 52
natulia [17]
   
\displaystyle  \\ &#10;p =  \frac{120-52}{120}\times 100 =   \frac{68}{120}\times 100 =  0,5(6) \times 100 = \boxed{56 \% }



6 0
3 years ago
How is finding the factors of a number different from finding the prime factorization of a number
ICE Princess25 [194]
Cause a prime number is a number that can only be divideed by itself like 19
factors are 0 2 4 6 8 10
8 0
3 years ago
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What is the answer to 3/7w-11=4/7w
stellarik [79]
\frac{3}{7}w-11=\frac{4}{7}w\ \ \ \ \ \ \ |\cdot7\\\\3w-77=4w\\\\-77=4w-3w\\\\w=-77\\\\Answer\ is\ -77.
7 0
3 years ago
Yellowstone National Park is a popular field trip destination. This year the senior class at High School A and the senior class
Rina8888 [55]

Each van carries 13 students and each bus carries 25 students.

<h3><u>Distribution</u></h3>

Given that the senior class at High School A and the senior class at High School B both planned trips to Yellowstone, and the senior class at High School A rented and filled 5 vans and 2 buses with 115 students, while High School B rented and filled 1 van and 6 buses with 163 students, and each van carried the same number of students and each bus carried the same number of students, to determine the number of students in each van and in each bus, the following calculation must be made:

  • 5X + 2Y = 115
  • 1X + 6Y = 163
  • 5X + 2Y = 115
  • 5X + 30Y = 815
  • 815 - 115 = 28Y
  • 700 = 28Y
  • Y = 700 / 28
  • y = 25
  • 1X + 6x25 = 163
  • 1X = 163 - 150
  • X = 13

Therefore, each van carries 13 students and each bus carries 25 students.

Learn more about distribution in brainly.com/question/14310262

#SPJ1

6 0
1 year ago
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