(i)  x (ii)  y (iii) y  (iv) < w y (v) +  x y (vi) < x (Total 8 marks) (a) Calculate . (1) (b) Express your answer to part (a) in the form  10k, where a 1   10 and . a k (2) © Juan estimates the length of a carpet to be 12 metres and the width to be 8 metres. He then estimates the area of the carpet. (i) Write down his estimated area of the carpet. (1) When the carpet is accurately measured it is found to have an area of 90 square metres. (ii) Calculate the percentage error made by Juan. (2) (Total 6 marks) 7. Susi travels from Singapore to Thailand and changes 1500 Singapore dollars (SGD) to Thai baht (THB). The exchange rate is 1 SGD buys 21.03464 THB. (a) Calculate the number of Thai baht Susi buys. Give your answer correct to the nearest baht. (2) Susi leaves Thailand and travels to Indonesia. She has 20 000 THB and uses these to buy Indonesian rupiah (IDR). The exchange rate is 3.28352 THB buys 1000 IDR.
(i) x  (ii) y  (iii) y  (iv) w < y (v) x + y  (vi) < x (Total 8 marks) (a) Calculate . (1) (b) Express your answer to part (a) in the form a  10k, where 1  a  10 and k . (2) © Juan estimates the length of a carpet to be 12 metres and the width to be 8 metres. He then estimates the area of the carpet. (i) Write down his estimated area of the carpet. (1) When the carpet is accurately measured it is found to have an area of 90 square metres. (ii) Calculate the percentage error made by Juan. (2) (Total 6 marks) 7. Susi travels from Singapore to Thailand and changes 1500 Singapore dollars (SGD) to Thai baht (THB). The exchange rate is 1 SGD buys 21.03464 THB. (a) Calculate the number of Thai baht Susi buys. Give your answer correct to the nearest baht. (2) Susi leaves Thailand and travels to Indonesia. She has 20 000 THB and uses these to buy Indonesian rupiah (IDR). The exchange rate is 3.28352 THB buys 1000 IDR.
IB-Studies-Test-One-2016-Number-Coordinate-Geometry.docx