11) 12) 13) 14) 15) The ratio of lions to tigers in a zoo is 3:5. If there are 9 lions in the zoo, how many tigers are there? I have $78. I spend $45 on some Blu-Ray discs and two T-shirts for $12 each. How much money do I have left? A toy car costs $60. It is reduced by 10% in a sale. How much does it cost in the sale? Find the mean of 16, 12, 14, 7 and 6. 5 The radius of a circle is 4.8cm. What is the diameter? In a quiz show, I get 23 out of 50 questions right. What percentage did get right? I manage to run a mile in 6 minutes. What is my average speed in miles per hour? What is the probability of rolling a prime number on an 8-sided dice? 16) 17) 18)
First, we have to break down exactly how much more is 9 than 3, the ratio number. 9 is 3 times larger than it's ratio number. So, to get the number of tigers, we'll multiply 5 by 3, which is 15.
