Question

9 subtracted from the product of p and 4,the result is 11.the value of p is?


A. 5
B. 10
c. 18

Answer 1

Answer:

A. 5

Step-by-step explanation:

given -

9 subtracted from the product of p and 4, the result is 11

to find -

the value of p

solution-

9 subtracted from the product of p and 4, the result is 11 =

=> 9 subtracted from p×4 = 11

=> p×4 - 9 = 11

=> 4p - 9 = 11

=> 4p = 11+9

=> 4p = 20

=> p = 20÷4

=> p = 5

to prove

f(p) =

=> 4p - 9 = 11

f(5) =

=> 4(5) - 9 = 11

=> (4×5) - 9 = 11

=> 20-9 = 11

=> 11 = 11

=> LHS = RHS

proved

extra information :-

• subtracted from => (-)
• product of a and b => ab (a×b)
• the result => (=)
• here we used 'f(p)' to prove usually we use 'p(Variable)' but when variable is 'p' we used 'f'.

hope it helps.