Question

John has 3.5 mL of vanilla essense and borrowed s mL from his neighbour for baking a cake. If he now has 7.5 mL of vanilla essence, which of the following expression gives the amount of vanilla essence with him?

• A. s + 3.5 = 7.5
• B. s + 7.5 = 3.5
• C. s - 3.5 = 7.5
• D. s - 7.5 = 3.5

Answer 1

The correct option is A s + 3.5 = 7.5

Initially, John had 3.5 mL of vanilla essence.

He borrowed s mL of vanilla essence.

Now, he has 7.5 mL of vanilla essence.

3.5 mL should be added with s mL to get 7.5 mL.

Hence, the required equation to represent the amount of vanilla essence with John is s + 3.5 = 7.5.