Hey there!
Your answer is $220.
First off, let's make sure we understand that the sales tax is applied <em>after</em> the 25% discount has been applied.
So, the price he paid was 108% of the discounted price: 100% plus the 8% sales tax.
108% in decimal form is 1.08 (move the decimal 2 places to the left).
To get the final price after tax from the price before tax, you would multiply the price before tax by 1.08, so we'll do the opposite and divide the final price by 1.08.
178.20 ÷ 1.08 = 165
The discounted price is $165.
This is 75% of the original price, which is 0.75. Just like the last step, we are going to divide by this to get the original price of the phone.
165 ÷ 0.75 = 220
The original price of the cell phone is $220.
Hope this helps!
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Answer:</h2><h2>3:5</h2><h2 /><h2>Hope this helps!!</h2>
45 km per hours because it is distance divided by time
Answer:
(D)On a coordinate plane, a parabola opens up with x-intercepts at (negative 2, 0) and (2, 0), and a y-intercept at the vertex (0, negative 4).
Step-by-step explanation:
For a parabola to have a minimum vertex, it must open upward. (a>0).
In the given options, the parabola which opens upward is option D.
On a coordinate plane, a parabola opens up with x-intercepts at (negative 2, 0) and (2, 0), and a y-intercept at the vertex (0, negative 4).
Therefore, it has a minimum vertex with coordinates (0,-4).
When you are substituting equations, all you are doing is plugging in variables. Lets do an example..something random but easy...
y = 2x - 3
4x + 2y = 10
So since 2x + 3 equals y we are going to plug in those numbers into the second equation.
4x + 2(2x - 3) = 10
Now we distribute
4x + 4x - 6 = 10
Combine like terms.
8x - 6 = 10
Add 6 to both sides.
8x = 16
Divide.
x = 2
And thats how you substitute equations.
I hope this helps love! :)