<span>you must make there be a common denominator(lower number) so 9/10*3(otherwise known as 3/3)=27/30 1/3*10(otherwise known as 10/10=10/30 now we do the math 27/30-10/30=17/30 when you add or subtract fractions you always find a common denominator then only add or subtract the numerator (top number)</span>
Answer:
$33
Step-by-step explanation:
60x/100 = 20
Cross multiplying 100 and 20
60x= 2000
Make x subject of formula
X = 2000/60 = 33
Hence original price is $33
Answer:
Step-by-step explanation:
Consider the following figure,
We know that equilateral triangle is a triangle in which in all sides are equal.
So, AB = BC = AC = 1
Also, in equilateral triangle, altitude and median are the same.
As AM is the median, M is the midpoint of BC,
In the figure, AM is a median as well as an altitude.
In ,
Using Pythagoras theorem:
Similarly, in ,
Answer:
Step-by-step explanation:
here A(-3,-2)
-3 is x and -2 is y
so use this formula to find A'
p(x,y)=p'kx,ky)
here k is a scale factor which is 1/2
A(-3,-2)=A'(1/2*-3.1/2*-2)
A'(-3/2,-1)