Answer:
Step-by-step explanation:
Let 
represent the cost of the torch and 
represent the cost of the battery.
The torch and a battery cost £2.50 altogether.
The torch costs £2.00 more than the battery.
We substitute the second equation into the first equation to get;
£2.50
The price of the battery is £0.25
We express this as a fraction of the total cost which is £2.50 to get;
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}</span>
Answer:
1224 cm^3
Step-by-step explanation:
The shape of the box is a rectangular prism.
The volume of a rectangular prism is given by the formula below.
volume = length * width * height
volume = 10.2 cm * 15 cm * 8 cm
volume = 1224 cm^3
Answer:
There are probably more than this but here
$12 for pens would give you 6
$12 for notepads would give you 4
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$18 for notepads would give you 6
$6 for pens would give you 3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$21 for for notepads would give you 7
$2 or pens would give you 1
and $1 left
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$6 for notepads would give you 2
$18 for pens would give you 9
Answer: 
Step-by-step explanation:
Using Pythagoras theorem , since it is a right angled triangle ,
side 1 = 10cm
side 2 = x cm
side 3 = x cm
Pythagoras theorem states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides. That is
100 = 
divide through by 2 , we have
50 = 
find the square root of both sides
