Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Cost of owning and operating a printer :
Purchase Cost = $100
Printing per per page = $0.05
Thus, owning and operating cost :
Purchase cost + (Printing per page * number of pages)
Number of pages = p
100 + 0.05p
Service cost :
Amount per page = 0.25
Total revenue = cost per page * number of pages
Total revenue from service =. 0.25p
The equation :
100 + 0.05p = 0.25p ; is the owning and operating cost = total revenue
It gives the equation to calculate the number of pages at which total revenue equals owning and operating cost.
100 + 0.05p = 0.25p
100 =0.25p - 0.05p
100 = 0.20p
p = 100/0.2
p = 500
When number of pages equals 500; the owning and operating cost is equal to the revenue made.
Answer:
Sister = 15 years old
Brother = 12 years old
Step-by-step explanation:
Right now, if the brother is B years old and the sister is S years old, B = (4/5)S because the ratio from brother to sister is 4:5, so if one unit is X, B = 4X and S = 5X
Three years ago, the brother was B-3 years old and the sister was S-3 years old. Keeping one unit as X, we have
B = 3X
S = 4X
B-3 = (3/4)(S-3)
Therefore, we have a system of equations
B = (4/5)S
B-3 = (3/4)(S-3)
Substitute (4/5)S for B into the second equation to only have one variable
(4/5)S - 3 = (3/4)(S-3)
(4/5)S - 3 = (3/4)S - 9/4
add 3 to both sides and subtract (3/4)S from both sides to isolate the variable and its coefficient
(1/20)S = 3/4
multiply both sides by 20 to isolate the S
S = 15
B = (4/5)S = 12
Answer:
2 · x² - 20
Step-by-step explanation:
2x - 5 · x + 4
2x · x - 20
2x² - 20
2 · x² - 20
<h3>
Answer:</h3>
The slope is 4
<h3>
Step-by-step explanation:</h3>
We are given the equation;
y = 4x - 6
We are required to determine the slope of the line.
- We need to know that when an equation of a line is written in the form;
y = mx + c
- Then, m is the slope of the line and c is the y-intercept.
In this case;
The equation, y = 4x - 6 is already in the form of y=mx + c
Therefore;
The slope of the line 4
Answer:
50
Step-by-step explanation: I think this is the answer because you need to add 19 and 31 and every percent goes to 100% 19 + 31 = 50 and 19 + 31 + 50 = 100 so 50% voted for biking. Hope this helps.
