# Teaching Treasures™

Year 8-9 Maths

Complete the problems, click "Check All My Answers" button  showing  results.
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If x = 2/3 y = 7.66Rm = 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.

ANSWER cm 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.

ANSWER m2 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.

ANSWER cm3 15.     A spherical shaped ball has a radius of 5.28 cm and a height of 10.56 cm. Round answer to the nearest 10th.

 a)   Find the surface area of the ball. ANSWER cm 2 b)   Find the volume of the ball. ANSWER cm3 Back to Maths.... which is an important subject to learn because you use maths calculations every day. Different areas of maths can be explored from our web site. There are pages which will teach addition, subtraction, multiplication, division, early algebra and the list goes on. If you want to learn more about maths, no problem... you've come to the right place. Enjoy exploring our site and we hope you have fun learning.... more...