Answer:
Yes (x – 13), (x-2) are both factors of the equation.
Step-by-step explanation:
Multiplying both factors will give the original equation
factorisation is the reverse of multiplying out.
Furthermore factorization is one of the methods used to solve quadratic problems
Others are graphical solutions and formula method
Answer:
all real numbers for both
Step-by-step explanation:
1.20(35)
this would be the same as :
(1 + 0.2)* 35 <==
or it also could have been 35 + 0.20(35)
Answer:
4:1
Step-by-step explanation:
Let us assume that the cost of water is free, that is Rs.0.
Let x represent the number of liters of milk, y represent the number of liters of water and z represent the volume of the mixture in liters, hence:
z = x + y (1)
Milk cost Rs.5 per liter, water cost Rs.0 per liter and the mixture cost Rs.4 per liter. Therefore:
5x + 0(y) = 4z (2)
Substituting z = x + y in equation 2 gives:
5x + 0(y) = 4(x + y)
5x = 4x + 4y
5x - 4x = 4y
x = 4y
x / y = 4 / 1
x : y = 4 : 1
The proportion in which the milk is to be mixed with water is 4 : 1, that is 4 liters of milk per 1 liter of water
