Answer:
$18
Step-by-step explanation:
- I multiply the tax by the pretax price of the meal, and I get 8% * x
- I multiply the tip by the pretax price of the meal, and I get 20% * x
- I make an equation, and make sure to add the original x
- 2/25x + 1/5x + x=23.04
- 32/25x=23.04
- x=18
- Therefore, the pretax price of the meal is $18
First of all, recall that division by zero is undefined; it's nonsensical; it's just not allowed.So zero certainly needs to be excluded when dividing.
But what about multiplying by zero?
The problem is that multiplying by zero can change the truth of an equation:
It can take a false equation to a true equation.
To see this, consider the false equation ‘
2 = 3
Multiplying both sides by zero results in the new equation
2 ⋅ 0 = 3 ⋅0 (that is, ‘0 = 0’), which is true.
Answer:
4th option - over the interval (4,7) the local minimum is -7
Step-by-step explanation:
There's only one local minimum in this graph and it's the one between (4,7), so this is the only plausible answer.
Answer:
50
Step-by-step explanation:
Answer:
Step-by-step explanation: