Answer:
Formula of the area of triangle = 1/2 × b × h (where 'b' is the base and 'h' is the height)
1 hectare = $36
$486 = 13.5 hectares
13.5 hectares = 1/2 × b × h
To get b × h, you use the reverse of the formula. Hence:
13.5 = 1/2 × b × h
13.5 ÷ 1/2 = b × h
= 27
27 is b × h.
The question states that the base is three times the height. Hence:
b = 3u
h = 1u
b × h = 27
= 3u × 1u
Thus, we need to find one value which is three times the other, in order to get a product of 27.
Factors of 27:
1 × 27
3 × 9
9 is three times of 3. Thus, the base is 9, while the height is 3.
Step-by-step explanation:
a-2=3+6a/3
By cross multiply
3(a-2)=3+6a
3a-6=3+6a
-6-3=6a-3a
-9=3a
a=-3
Answer:
11 and 13
Step-by-step explanation:
let smaller odd number be x
larger odd nuber be x+2
according to the question algebraic expression can be written as
6x+3(x+2)=105
6x+3x+6=105
9x=105-6
9x=99
x=99/9
x=11
larger number=x+2
11+2
13
Answer:
-5/2, -2.3, sqrt2, sqrt5, 2 1/4, 2.3, 4
