**Helpful Links**

**Mark Scheme**

**Working**

a) Work out the value of

Give your answer in standard form correct to 3 significant figures

*T*.Give your answer in standard form correct to 3 significant figures

*w*is increased by 10%

*d*is increased by 5%

Lottie says,

“The value of

*T*will increase because both*w*and*d*are increased.”b) Lottie is wrong.

Explain why

**Question**

9)

a) Work out the value of

Give your answer in standard form correct to 3 significant figures

*T*.Give your answer in standard form correct to 3 significant figures

**[2 marks]**

*w*is increased by 10%

*d*is increased by 5%

Lottie says,

“The value of

*T*will increase because both*w*and*d*are increased.”b) Lottie is wrong.

Explain why

**[2 marks]**