Answer:
n = 4
Step-by-step explanation:
Put the given values in the equation and solve for n.
9 = 4n -7
16 = 4n . . . . . . add 7
4 = n . . . . . . . . divide by 4
The value of n is 4 so that m(4) = 9.
Answer:
the range of possible values for x are 1.6<x<9.6
Step-by-step explanation:
Answer:
B.
I hope it will be useful.
Hint:
Since its an isosceles right angled triangle! (Apply the properties)
Or, you can use Pythagoras theorem.
(2x^2=9 v.i.z., on rationalizing 1.5*√2)
x + 4x = 40
5x = 40
x = 8
Mrs. Viola has 8 and Mrs. Rullo has 4*8=32 pens.
