Let's say "n" is a natural number. {1,2,3,4,..} To ensure we have an even number we will multiply "n" by 2. Two times any number will make an even number.
consecutive even numbers are like; 2, 4, 6, 8, 10 .. etc. Add +2 to the previous number to get the next consecutive.
1st even number = 2n
2nd even number = 2n + 2
3rd even number = 2n + 4
twice the first number (2n) is 20 more then the second (2n + 2).
2(2n) = 2n + 2 + 20
4n = 2n + 22
4n - 2n = 22
2n = 22
n = 11
Now use n = 11 to find the 3 consecutive even numbers.
1st even number = 2(11) = 22
2nd even number = 2(11) + 2 = 24
3rd even number = 2(11) + 4 = 26
22, 24, 26
Answer:
a. 
b. 
Step-by-step explanation:
Solving (a):
Required
Determine her savings.
Solving (a):
Required
Determine the price before tax
First, we need to determine her savings
The price before tax is calculated as follows:
Answer:
a = 4.
Stepby-step explanation:
x^2 - 4 = (x + 2)(x - 2).
Answer:
So apples would cost $2.95 and oranges would cost $1.92 then you would add those two together to get $4.87.
Step-by-step explanation:
Apples you would do 0.52×5 and get $2.95 and for oranges you would do 0.48×4 to get $1.92, then you just add the two numbers together.
