Answer:
Step-by-step explanation:
Before adding we require the fractions to have a common denominator
The lowest common denominator of 2, 5 and 3 is 30, thus
+
+
= +
+
Add the numerators leaving the denominator
= =
for every left-handed person, there are about 4 right-handed people. if there are 30 students in a class, perdict the number of
1 answer:
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Answer:
Therefore values of a and b are
Step-by-step explanation:
Rewrite in the form
where a and b are integers,
To Find:
a = ?
b = ?
Solution:
..............Given
Which can be written as
Adding half coefficient of X square on both the side we get
...................( 1 )
By identity we have (A - B)² =A² - 2AB + B²
Therefore,
Substituting in equation 1 we get
Which is in the form of
On comparing we get
a = 3 and b = 2
Therefore values of a and b are
Original cost (OC) = $13
New cost (NC) = $19
Percentage increase =
= 46.15 %
New cost (NC) = $19
Percentage increase =
= 46.15 %