Answer:
what's the original equation
Step-by-step explanation:
<em>The</em><em> </em><em>length</em><em> </em><em>is</em><em> </em><em><u>1</u></em><em><u>5</u></em><em><u> </u></em><em>metres</em><em>,</em><em>the</em><em> </em><em>width</em><em> </em><em>is</em><em> </em><em><u>9</u></em><em><u> </u></em><em><u>m</u></em><em><u>,</u></em><em><u>and</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>area</u></em><em><u> </u></em><em>is</em><em> </em><em><u>1</u></em><em><u>3</u></em><em><u>5</u></em><em><u> </u></em><em>m</em>
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em>
Okay. fist off don't think of them as 5 units each, but 1. so if you were to put it on graphing paper and box squares each time. you would be able to get 8 in for both sides to make a square. Area then would be 1600ft squared because 8 ×5 is 40 and 40×40 is 1600. then you calculate how many squares you used. 8×8=64. and 80-64=16 so 16 pieces are left over. then 9×9 (increasing the square) is 81. so 17 pieces to increase it.
It could be 30 -12 =18. 30 x and y is 18