let
x---------> Aviva’s age
y--------->Kanti’s age
z--------> Lakshmi’s age
we know that
y=x-3-----> equation 1
z=2*y-----> equation 2
substitute equation 1 in equation 2
z=2*(x-3)
so
Aviva’s age------> x
Kanti’s age-------> x-3
Lakshmi’s age----> 2*(x-3)
therefore
the answer is the option
b) 2(x-3)
Answer:
16%
Step-by-step explanation:
Given the total number of students in a school = 675
Number of students at a squirrel during flu season = 108
Squirrels are known for transmitting flu disease, therefore if 108 students are at the squirrels during a particular day, there is possibility that this ones have contacted flu.
Percentage of those that have flu = number of students at the squirrels/Total number of students × 100%
= 108/675 × 100
= 10800/675
= 16%
This means that 16% of the students have flu
Well 100 Mililiters=1 Liter so Anything that is about 1 Liter should do
Answer: 
<u>Add 15 to both sides</u>
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Answer:
solution:-
diameter of a cylinder (d) = 12 cm
length(h) = 30 cm
curved surface area of cylinder (csa) = ?
we know that ,
therefore , csa of cylinder = 2πrh
r = d/2
or, r = 12/2= 6 cm
Then, csa if cylinder = 2 ×22/7×30
= 2×22×30/7
= 1320/7
= 188.57 Square cm Ans,......
