Answer:
the percentage profit is 20%
Step-by-step explanation:
Given that
Sean paid £10 for 24 chocolate bars
He sold all 24 chocolate bars for 50p each
we need to find out the percentage profit
Since he paid £10 and sale value is (24 × 0.50) i.e. £12
So, the percentage profit is
= (£12 - £10) ÷ (£10)
= 20%
Hence, the percentage profit is 20%
0.6%. 100% divided by 2,500 people means each person is worth 0.04%. 0.04 times 15 is 0.6
The slope intercept form is y=mx+b. m being the rate of the slope (rise over run) so in this case 2/1, or simply 2. b is the y intercept, or where a line passes through the y intercept, in this case it is -1.
Answer:
Step-by-step explanation:
price of 1 pen= $ 2
price of 1 pencil= $1
total money spent= $12
Let the number of pen be a and number of pencil be b.
2 a + b = 12 ----------------Equation 1
We have, she bought 3 more pens than pencils
a - b = 3 ------------------ Equation 2
Equation 1 +Equation 2,
2 a + b + a - b = 12 + 3
3a = 15
a = 5
Substituting in equation
5 - b = 3
b = 2
Number pencils Ava bought = 2
Using a graphing tool
Let's graph each of the cases to determine the solution of the problem
<u>case A)</u> 
see the attached figure N 
The range is the interval--------> (0,∞)
therefore
the function is not the solution
<u>case B)</u> 
see the attached figure N 
The range is the interval--------> (0,∞)
therefore
the function is not the solution
<u>case C)</u> 
see the attached figure N 
The range is the interval--------> (-∞,3)
therefore
the function is the solution
<u>case D)</u> 
see the attached figure N 
The range is the interval--------> (-3,∞)
therefore
the function is not the solution
<u>the answer is</u>
