Answer:
3 metres
Step-by-step explanation:
Let the width of the pathway be x
Area: (9+2x)(4+2x)
36 + 8x + 18x + 4x²
4x² + 26x + 36
Increased area is 150:
4x² + 26x + 36 = 150
4x² + 26x - 114 = 0
2x² + 13x - 57 = 0
2x² + 19x - 6x - 57 = 0
x(2x + 19) - 3(2x + 19) = 0
(x - 3)(2x + 19) = 0
x = 3, x = -19/2
Where are the answer choices?
The correct answer is: [D]:
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" three and twenty-eight hundredths ; 3 + 0.2 + 0.08 " .
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Note: Given: "3.28" .
_________________________
3
+ 0.2
0.08
____________
3.28 ;
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Note: The whole number, "3" (three);
"twenty-eight hundredths" = 28/100 = 28 ÷ 100 = 0.28 ;
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Note: 0.2 = 2/10 = 20/100 = 20÷100 = 0.20 = 0.2 ;
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Note: 0.08 = 8/100 = 8÷100 = 0.08 ;
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Youve already written it in words though
Answer:12.5
Step-by-step explanation: