If 3 times a certain number is increased by 4 the result is 28. what is the number?

if x is "the number," which of the following equations could be used to solve for the number?

3x + 4 = 28

3(x + 4) = 28

3x = 4 + 28

A.

Step-by-step explanation:

Let x be the number.

We have been given that 3 times a certain number is increased by 4.

3 times the number will be 3x and after increasing it by 4 will make our number .

We are also told that the result of the above process is 28.

So we can set our given expression equal to its result as:

Therefore, option A is the correct choice.

Let us solve for x.

Therefore, the number is 8.

12 servings. 4 times 3= 12

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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