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ZanzabumX [31]
3 years ago
10

Ellen makes and sells bookmarks. She graphs the number of bookmarks sold compared to the total money earned. What is the rate of

change for the function graphed to the left?

Mathematics
2 answers:
Bumek [7]3 years ago
8 0

Answer:

5/2 or 2.5

Step-by-step explanation:

5 divided by 2 is 2.5

DerKrebs [107]3 years ago
3 0

Given coordinates on the graph is (4,0), (8,10), (12,20).

We need to find the rate of change for the function graphed.

Actually rate of change is the second name of slope.

So, we need to find the slope between given coordinates.

We know slope formula

Slope=\frac{y_2-y_1}{x_2-x_1}

Let us choose first two coordinates (4,0), (8,10).

(x1,y1) = (4,0) and (x2,y2) = (8,10).

Plugging values of x1,x2,y1 and y2 in slope formula, we get

Slope=\frac{10-0}{8-4}=\frac{10}{4}

Slope=\frac{5}{2}

=2.5

Therefore, rate of change is 5/2 or $2.5 earned per bookmark sold.

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Is (3, 0) a solution to the equation y = 5x + 3? *<br> 1 point
Sav [38]

Answer:

no

Step-by-step explanation:

Substitute x = 3 into the equation and if the result is 0 then it is a solution

y = 5(3) + 3 = 15 + 3 = 18 ≠ 0

Then (3, 0 ) is not a solution to the equation

7 0
2 years ago
tom had a platter of chocolate wafers. he ate 5 of them and then gave his brother 3 he then moved on to his baseball team of 8 m
Aloiza [94]

Tom started with total 72 chocolate wafers.

<u><em>Explanation</em></u>

The number of chocolate wafers taken by 8 members of the baseball team are in the sequence :  1, 3,5,7,9,11,13,15

The above sequence is <u>arithmetic sequence</u> with first term(a₁)= 1 and common difference (d) = 2

<u>Formula for Sum</u> of first n terms in arithmetic sequence is....

S_{n}= \frac{n}{2}[2a_{1}+(n-1)d]

So, the Sum of 8 terms in that sequence....

S_{8}= \frac{8}{2}[2(1)+(8-1)(2)]\\ \\ S_{8}= 4[2+7(2)]\\ \\ S_{8}=4(2+14)\\ \\ S_{8}=4(16)=64

That means, the total number of chocolate wafers taken by the baseball team members is 64.  Tom ate 5 and then gave his brother 3 chocolate wafers at first.

So, the total number of chocolate wafers at starting =64+5+3=72

6 0
4 years ago
Solve for x in the equation x^2-4x-9=29? x=2+/- squareroot 42 x=2+/-squareroot 33 x=2+/-squareroot 34 x=4+/-squareroot 42
jeka57 [31]
For this case what we must do is to use the formula of the resolvent in the following way:
 x = (- b +/- root (b ^ 2 - 4 * a * c)) / (2 * a)
 Where,
 a = 1
 b = -4
 c = -38
 Substituting the values:
 x = (- (- 4) +/- root ((- 4) ^ 2 - 4 * 1 * (- 38))) / (2 * 1)
 x = (4 +/- root (168)) / 2
 x = (2 +/- root (42))
 Answer:
 x = 2 +/- squareroot 42
3 0
4 years ago
What is the range of the function y = x2 + 5 if the domain is (-2,0,4}​
Alenkasestr [34]

Answer:

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Step-by-step explanation:

6 0
4 years ago
Explain how you could use the information that all circles are similar to show that the value of pi is a constant.
zhenek [66]

Answer:

The proof that πk(C1)=πk(C2) of course would just apply the similarity of polygons and the behavior of length and area for changes of scale. This argument does not assume a limit-based theory of length and area, because the theory of length and area for polygons in Euclidean geometry only requires dissections and rigid motions ("cut-and-paste equivalence" or equidecomposability). Any polygonal arc or region can be standardized to an interval or square by a finite number of (area and length preserving) cut-and-paste dissections. Numerical calculations involving the πk, such as ratios of particular lengths or areas, can be understood either as applying to equidecomposability classes of polygons, or the standardizations. In both interpretations, due to the similitude, the results will be the same for C1 and C2.

7 0
3 years ago
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