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iren2701 [21]
3 years ago
9

Need help with this math​

Mathematics
1 answer:
vazorg [7]3 years ago
6 0
A Little but not that much so im straight
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Which ratio is different from the other three 2/5 610 8/20 12:30
agasfer [191]
When we make decimals of all the fractions, we would get the following:

\frac{2}{5}  = 0.4
\frac{6}{10}  = 0.6
\frac{8}{20}  = 0.4
\frac{12}{30}  = 0.4

As you can see, all the numbers equal 0.4, with the exception of 6/10. Hence, the number with the other ratio is 6/10.


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Read 2 more answers
A rectangular flower bed covers an area of 11.76 square feet in the garden. The width of the flower bed is 3.5 feet less than it
Degger [83]
The length and width of the garden will be obtain as follows:
let the length be x ft, the width will be (x+3.5)ft
area of the bed will be:
A=length*width
11.76=x(x+3.5)
11.76=x^2+3.5x
thus
x^2+3.5x-11.76=0
solving this by quadratic formula we get:
x=[-b+/-sqrt(b^2-4ac)]/2a
thus plugging in the values we obtain
x=[-3.5+/-sqrt(3.5^2-4(-11.76*1))]/2
x=[-3.5+/-sqrt59.29]/2
x=[-3.5+/-7.7]/2
x=4.2 or -11.2
thus the length will be x=4.2 ft and the width will be x-3.5=0.7 ft
8 0
3 years ago
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