Answer:
3 + X
Step-by-step explanation:
because the word sum is only used in addition.
4/12 / 1/12 & 4/12 / 48/12 are how you make them equal, although i'm not sure about the rest
÷you need to find how many parts there are ; 4 + 3 = <u>7</u>
you then need to divide the number by the parts ; £56 ÷ 7 = <u>£8</u>
<u />1 part = <u>£8</u>
<u />4:3, 4 parts : 3 parts.
4 x £8 = <u>£32</u>
3 x £8 = <u>£24</u>
<u><em /></u><em> <u>4:3</u></em><u /><u /> = <em><u>£32:£24</u></em>
<em>to check your answer ;</em>
<em>add both parts of your final answer , £32 + £24 = <u>£56</u></em><u><em></em></u>
Answer:
<h2>20 cm.</h2>
Step-by-step explanation:
We know that the permiter is defined as
Where 
is the longest side, 
is the smallest and 
is the middle side.
If 
then, 
, where we need to find an expression for using the law of cosines.
Replacing all expression, the perimeter is
Using a calculator, the perimeter is 20 units centimeters.
108 minutes because 50 percent of 240 is 120 so take 5 percent away and it is 108
