What is the value of 5y - 3 when y = 4?

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Excel in the CXC CSEC Mathematics Exam. Prepare with comprehensive quizzes featuring multiple choice questions, accessible hints, and explanations. Boost your confidence and knowledge!

Multiple Choice

What is the value of 5y - 3 when y = 4?

Explanation:
To find the value of the expression \(5y - 3\) when \(y = 4\), you start by substituting the value of \(y\) into the expression. First, substitute \(y\) with \(4\): \[ 5(4) - 3 \] Now, calculate \(5(4)\): \[ 5 \times 4 = 20 \] Next, subtract \(3\) from \(20\): \[ 20 - 3 = 17 \] Therefore, the value of the expression \(5y - 3\) when \(y = 4\) is \(17\). This confirms that the answer is correct. Each step shows how to apply the arithmetic operations correctly, ensuring clarity in both substitution and calculation.

To find the value of the expression (5y - 3) when (y = 4), you start by substituting the value of (y) into the expression.

First, substitute (y) with (4):

[

5(4) - 3

]

Now, calculate (5(4)):

[

5 \times 4 = 20

]

Next, subtract (3) from (20):

[

20 - 3 = 17

]

Therefore, the value of the expression (5y - 3) when (y = 4) is (17). This confirms that the answer is correct.

Each step shows how to apply the arithmetic operations correctly, ensuring clarity in both substitution and calculation.

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