Nswer:ne square mile of forest is divided up into ten equally sized quadrats, 1/10th of a mile each. In quadrat #3, twenty-five pine trees are counted. What would be a reasonable estimate for the total number of pine trees in the larger plot of land (one square mile or forest)? 2 SEE ANSWERS 250 pine trees

Explanation:

If we have a one square mile of forest that is divided into ten equally sized quadrants, that means that each of them accounts for 1/10th of a mile. If in one of the quadrants there are twenty-five pine trees, and if that is the number of pine trees in all of the quadrants, then we can easily come to the result for the whole forest. As each quadrant is 1/10 of the whole area, it means that the number of pine trees in one of them should be multiplied by the number of quadrants:

25 x 10 = 250

We get a result of 250 pine trees for the whole forest area of one square mile.

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step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .