Given:
Amanda sold 13 rolls of plain wrapping paper and 12 rolls of holiday wrapping paper for a total of $208.
And,
Mofor sold 4 rolls of plain wrapping paper and 3 rolls of holiday wrapping paper for a total of $55.
Let, x be the cost of one roll of plain wrapping paper and y be the cost of one roll of holiday wrapping paper.
The equations are,
Solve the equations,
Put the value of y in equation (2),
Answer:
The cost of one roll of plain wrapping paper is x = $4.
The cost of one roll of holiday wrapping paper is y = $13.
You have to input each solution into the equation.
let’s start of with (12,0)
12-9(0)=12
12=12 <— which is true so it’s this one
let’s do the other ones to check
now let’s do (0,12)
0-9(12)=12
-108=12 <— not true
(3,-1)
3-9(-1)=12
13=12 <— not true
(0,-4/3)
0-9(-4/3)= 12
12=12 <— also true
the answer would be (12,0) and (0,-4/3). i’m not sure whether or not it’s a select all that apply question. i hope this helps
0.25% bc he is charged 5% per year so just multiple 5% times 5=0.25%
This question is much easier than the last one. As we can see the yellow are is the same as the bottom area with the same shape. And the area of the 2 hemispheres adds together to a full circle area: 3^2*pi=9pi
Area of yellow region=(36-9pi)/2=18-9/2pi=3.862 and round this to the nearest tenth getting 3.9.
Answer:
the slope is 2
Step-by-step explanation:
to find slope all you need to do is look at the places where the line and the graph intersect. you should be able to find atleast 2 places. Once you have done that, count up how ever many spaces it is until you are on the same line with the place where the line intersects with the graph remember that number in your head, then could left or right until you are on top of the other place where it intersects, remember that number. In this case I counted 2 spaces up and 1 space to the left which gave me 2/1 which is 2
hope this helps. have a good day!