1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alina1380 [7]
2 years ago
5

1) Anna and Jason have summer jobs stuffing envelopes for two different companies. Anna earns $20 for every 400 envelopes she fi

nishes. Jason earns $10 for every 250 envelopes he finishes.
A) Create tables, draw graphs, and write equations that show the earnings, y, as functions of the number of envelopes stuffed, x, for both Anna and Jason.

B) Who makes more from stuffing the same number of envelopes? Explain how you know using the information above.

C) Anna has savings of $100 at the beginning of the summer and she saves all of her earnings from her job. Graph her savings as an equationof the number of envelopes she’s stuffed, n. How does this graph compare to her previous earnings graph? What is the meaning of the initial value and slope in each case?

D)You survey 6 other employees and findthe following data on envelopesstuffed (x) and dollars earned(y). Plot a trend lineon the graph. Find the equation of the trend line.

Mathematics
1 answer:
Margarita [4]2 years ago
4 0

Answer:

The answer is below

Step-by-step explanation:

A) i)

For Anna initially, she has $0 from making 0 envelopes. Anna earns $20 for every 400 envelopes. Let x represent the number of envelopes and y the earnings. Hence this can be represented by the points (0, 0) and (400, 20). Using the equation of a line:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-0=\frac{20-0}{400-0}(x-0)\\\\y=\frac{1}{20} x

The table is:

x:   200     400       600     800     1000

y:    10        20          30        40       50

ii)

Jason has $0 from making 0 envelopes. For every 250 envelopes he has $10. Let x represent the number of envelopes and y the earnings. Hence this can be represented by the points (0, 0) and (250, 10). Using the equation of a line:

y-0=\frac{10-0}{250-0}(x-0)\\\\y=\frac{1}{25} x

x:   200     400       600     800     1000

y:    8         16           24        32       40

The graph is plotted using geogebra online graphing

b) From the table of Anna and Jason we can see that Anna makes more stuffing than Jason for the same number of envelopes.

c) Anna has a savings of $100 initially. Hence this can be represented by the points (0, 100) and (250, 10). Using the equation of a line:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-100=\frac{20-0}{400-100}(x-0)\\\\y=\frac{1}{15} x+100

Therefore from the graph there is a y intercept at 100. That is the earnings starts initially is $100.

The equation of a line is given as y = mx + b, where m is the slope and b is the y intercept (initial value of y at x = 0)

For the first graph, the slope is 1/20 with an initial value of 0 while for the second graph the slope is 1/15 with an initial value of 100

D) The trend line pass through the points (10, 10) and (100, 40), hence:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-10=\frac{40-10}{100-10}(x-10)\\\\y-10=\frac{1}{3} (x-10)\\\\y=\frac{1}{3}x+\frac{20}{3}

You might be interested in
What is the image of ( 0 , -6 ) after a reflection over the line y = x?
Alla [95]

Answer:

(-6, 0)

Step-by-step explanation:

(x, y) over y=x = (y, x)

so (0, -6) will be (-6, 0).

3 0
3 years ago
P pennies added to 22 pennies
taurus [48]
23 Pennie’s is the answer I believe
7 0
2 years ago
PLEASE HELP I WILL GIVE MEDALS AND MARK BRAINLIEST
xz_007 [3.2K]
<span>This is a 30 - 45 - 105 angled triangle, so the answer would be A. 
"</span><span>Largest angle = 105, Middle angle = 45, Smallest angle = 30"</span>
5 0
3 years ago
Find the value of the nine digit of 6493
lesantik [10]
The value of the digit is 90
5 0
3 years ago
Read 2 more answers
16 multiply 7/8 in simplest
denpristay [2]
Answer: 14

= 16 x (7/8)
= 8 goes into 16 2 times
= 2 x 7
= 14
5 0
3 years ago
Other questions:
  • A wildlife refuge in South America has howler monkeys and spider monkeys. A biologist working there randomly selected eight adul
    10·2 answers
  • Does the choice of the base affect the area of the triangle
    10·2 answers
  • Which domain restrictions apply to the rational expression? x^2+4x+4 / x^2−4 Select each correct answer x≠−4 x≠−2 x≠0 x≠2 x≠4
    7·2 answers
  • Which expression is equivalent to –6(8 + 12)
    6·1 answer
  • You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta
    11·1 answer
  • The volume of this rectangular prism is 70 cubic units. If the area of the base is 28 square units, what is the height of the pr
    13·1 answer
  • PLEASE HELP ITS A BENCHMARK TEST ILL GIVE BRAINIEST Four points, D. V. Q, and M, are all positive rational numbers that are not
    12·1 answer
  • Need help with intreset
    5·1 answer
  • Cans of tuna cost $1.59 for 6 oz. At that rate, how much would 25 oz of tuna cost?
    15·1 answer
  • Whats (x + 3) - (5x - 4)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!