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Oksi-84 [34.3K]
2 years ago
12

There are 40 students in class A. There are 5% more students in class B. How many students are in class B?

Mathematics
2 answers:
Basile [38]2 years ago
6 0

Answer:

Solution,

⇒Total students in class A=40

⇒Class B=5%

Now,

5% of 40 students

→5/100 × 40=2 students

Again,

→Number of students in class B =40 students + 2 students

                                                    =42 students

Hence, there were 42 students in class B.

Step-by-step explanation:

NeTakaya2 years ago
3 0

Answer:

42

Step-by-step explanation:

105/100×40

=42

.........

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Answer:

x = 5

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

Step-by-step explanation:

<u>Step 1: Define equation</u>

4x - 1 = 7x - 16

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

  1. Subtract 4x on both sides:                    -1 = 3x - 16
  2. Add 16 to both sides:                             15 = 3x
  3. Divide 3 on both sides:                          5 = x
  4. Rewrite:                                                   x = 5

<u>Step 3: Check</u>

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

  1. Substitute in <em>x</em>:                    4(5) - 1 = 7(5) - 16
  2. Multiply:                               20 - 1 = 35 - 16
  3. Subtract:                              19 = 19

Here we see that 19 does indeed equal 19.

∴ x = 5 is a solution to the equation.

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Answer:

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Step-by-step explanation:

we know that

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