Answer:
Answer
Find out the what is the constant of proportionality .
To prove
As given
A recipe says to use 3 cups of flour to make 48 cookies.
the number of cookies made, y, to the number of cups of flour used,x .
Than
y = kx
Where k is the constant of proportionality.
48 = 3k
k = 16
Therefore the constant of proportionality is 16.
Answer:
Area of the circle = 
Step-by-step explanation:
Radius of the circle= 3 cm
Area of the circle=
As,

Putting the values in the formula:
Area of the circle= 

The area of the circle is 
Answer:
see explanation
Step-by-step explanation:
A
given
=
( cross- multiply )
5.7f = 34.2 ( divide both sides by 5.7 )
f = 6
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B
given
=
( cross- multiply )
3.6g = 92.34 ( divide both sides by 3.6 )
g = 25.65
Answer:
What is the ratio of boys to girls in simplest form?
The ratio of boys : girls →4:5 so you have 4 boys and 5 girls making the whole count 4+5=9 in its simplest form. So to change the ratio proportion into fraction proportion we have: boys →49 of the whole
Step-by-step explanation:
Answer:
Step-by-step explanation:
18:12*3=4,5
5000*4,5:100=225
5000+225=5225