If B is inversely proportional to A and B = 3.5 when
A = 2, find the value of B when A= 1.4.
Answers
Answer:
This is an example of inverse proportion, or inverse variation.
To change a proportion into an equation, multiply by a constant and then use the values given to find the value of the constant.
a
∝
1
b
⇒
a
=
k
b
⇒
k
=
a
b
Find the value of k, using the a and b given.
k
=
3
×
4
=
12
So,
a
=
12
b
can also be written as
b
=
12
a
When
a
=
48
,
b
=
12
48
=
1
_
4
please mark brainlist
Answer:
★ B = 5
Step-by-step explanation:
from the question...
When B is inversely proportional to A,
then,
B = R/A ••••••••••••(i)
★(Where we assume R is a constant)
When A= 2 then B =3.5.
now, from equation 1...
3.5 = R/2
R= 7 (after solving)
Since R is a constant,
then,
B = R/A for all values of B and the corresponding value of A.
therefore, when A= 1.4
then B=?
now,
B= 7/1.4
B=5 Ans.
I HOPE THIS SOLUTION MAY HELP YOU.