# Teaching Treasures™

Teaching Treasures Maths area is ideal to learn some maths from the convenience of your computer at home or in school

Year 8-9 Maths

Complete the problems, click "Check All My Answers" button  showing  results. If you like click on the "Print Results"  button after finishing the problems. There is a useful " Table of Formulas" button to help out.

If x = 2/3 , y = 7.66R,m = 6/7 find the value of each expression.

 1.   (x + m) × y  =

 2.   13m + 2y - x =

 3.   ( = 8) × x = What does h equal?

 4 .   ( = 4) × m + 7x = What does a equal?

Solve the following equations

 5 .    5(x + 6) = 60    x = 6 .    9(x - 3) = 117               x = 7 .    3(4x - 3) = 51   x = 8 .    7(2x - 6) = 9x - 12       x = 9 .    5(2x - 2) + 2(5 - n) = 24        x = and n = 10 .    9(3x - 7) - 8(3y + 1) = -11        x= and y =

Problems

NOTE: The answers to the following problems have been calculated
to eight decimal places and then rounded. You will need to do this.

11 .   A triangular shape has a height of 53 cm and a base measurement of 42 cm.
Find the hypotenuse of this triangle. Round answer to the nearest hundredth.

12 A triangular shaped garden has a base measurement of 4.25 metres and a height of 3.86 metres.
Find the total area of this garden. Round answer to the nearest hundredth.

13 .    The water authority has built a new concrete water tank for a small towns water supply. The tanks
diametre is 3.5 metres and  height 1.96 metres. Round all answers to the nearest hundredth.
 a )  Find the area of the tank. ANSWER m2 b)   Find the circumference of the water tank. ANSWER m c)   Find the volume of the tank. ANSWER m3

14 .  A cone shaped object has a radius of 4.67 cm and a height of 10.56 cm.
Find the volume of this cone. Round answer to the nearest 10th.