You're basically adding five because 10 - 5 = 5. Start from zero.
5, 10, 15, 20, 25
Answer:
23
Step-by-step explanation:
(Are you saying the king case is an additional 12% of $84? I think you should word the question a bit more clearly).
12% = 12/100 = 0.12 multiplied by $84 = $10.08 = $84 + $10.08 = $94.08
We have $94.08 so far (king case and camera price combined).
Tax is 6%, so 6/100 = 0.06 multiplied by $94.08 = $5.64
Add $5.64 to the $94.08 total we calculated.
$94.08 + $5.64 = $99.72 <=== this is our total cost plus tax.
Answer:
Below.
Step-by-step explanation:
a. Φ^2 − Φ − 1 = 0
Φ2 − Φ = 1
(Φ - 0.5)^2 - 0.25 = 1
(Φ - 0.5)^2 = 1.25
Φ - 0.5 = √(1.25) (We only take the positive root).
Φ = 0.5 + √(1.25)
b. I used Completing the square.
c. Φ is irrational That is it cannot be represented as a fraction a/b and because of this it can only be approximated by a decimal.
