Answer:
An album costs $7 while a single cost $4
Step-by-step explanation:
Let the amount spent on singles be $x while the amount spent on albums be $y
First day, she downloaded 3 albums and 10 singles that cost $61
Hence;
3y + 10x = 61 ••••••••(ii)
Second day, she downloaded 6 albums and 8 singles for $74
8x + 6y = 74 ••••••••(ii)
We now want to use elimination method to solve both equations
Multiply equation i by 2 and ii by i
20x + 6y = 122
8x + 6y = 74
Subtract ii from i now
12x = 48
x = 48/12
x = 4
Recall;
3y + 10x = 61
substitute for x
3y + 10(4) = 61
3y + 40 = 61
3y = 61-40
3y = 21
y = 21/3
y = 7
An album costs $7 while a single cost $4
Answer:
Step-by-step explanation:I got 4%,so it should be correct
Answer:
B)
Step-by-step explanation:
Given function:
We need to find the equivalent function.
By looking at the choices, we know that we have to convert the given function into its vertex form.
We apply completing square method to do so.
We have
First of all we make sure that the leading co-efficient is =1.
Since its already 1, so we move ahead to next term.
Isolating and terms on one side.
Subtracting both sides by 10.
In order to make the right side a perfect square trinomial, we will take half of the co-efficient of term, square it and add it both sides side.
square of half of the co-efficient of term =
Adding 9 to both sides.
Since is a perfect square of , so, we can write as:
Adding 1 to both sides:
[Vertex form]
∴ Equivalent function
The height of crate is 3 feet
<em><u>Solution:</u></em>
Given that Summer Dave builds a crate to hold vegetables
Volume of crate = 48 cubic feet
Base area of crate = 16 square feet
To find: height of crate
The crate is of shape cuboid
The volume of cuboid is given as:
We know that,
Therefore, volume becomes,
Substituting the given values we get,
Thus height of crate is 3 feet
Answer:
its gonna be -4
Step-by-step explanation: