Answer:
<h2> $24</h2>
Step-by-step explanation:
The question is not complete, here is the complete question
"<em>DeMarkus says that a store overcharged him on the price of the video game he bought. He thought that the price was marked 1/4 of the original price, but it was really 1/4 off the original price. He misread the advertisement. If the original price of the game was $48, what is the difference between the price that DeMarkus thought he should pay and the price that the store charged him?"</em>
<h2 /><h2>Solution</h2><h2>Take note of the words "of" and "off" </h2>
1/4 of $48= 0.25*48=$12
so he thought he should pay $12
1/4 off $48= $48-$12= $36
now the difference is
36-12= $24
Answer:
1: 11b(exponent of 2) +6b -9c
2: -11xy -9x -5x(exponent of 2)y
Step-by-step explanation:
Answer:
149
Step-by-step explanation:
167-18 = 149
149 is the answer
Here is the answer for question 19
A. I would suggest including <em>all</em> units in your answer. Both answers are correct but the unit is also important.
average rate of change:
($750 - $350) / (2014 - 2010) = $400 / (4 years) = $100 per year
initial value:
$350
B. Take 2010 to be year 0. Then for year <em>x</em> = 0, the fee is <em>y</em> = $350.
If the fee increases at a rate of $100 per year, this means that when <em>x</em> = 1, <em>y</em> = $350 + $100 = $450. So the graph of the function that models the dog-walking fee is a line that passes through the points (0, 350) and (1, 450), adn the slope of this line is
(450 - 350) / (1 - 0) = 100/1 = 100
which is the same as the average rate of change.
Using the point-slope formula for a line, the equation you want is then
<em>y</em> - 350 = 100 (<em>x</em> - 0)
<em>y</em> - 350 = 100<em>x</em>
<em>y</em> = 100<em>x</em> + 350
