Hailey wants to hire someone to paint her house. She researched several independent painters who provided information about the average amount of time it takes them to paint a certain number of square feet of wall space. The three painters with the top ratings are listed in the table below, along with the information they provided.
Name Area Painted
(square feet) Time
(hours:minutes)
Richard 288 45
Gerard 825 2:12
Matthew 992 2:35
Part A: Calculate the unit rate for each painter.
Part B: Compare each pair of painters (Richard with Gerard; Gerard with Matthew; Matthew with Richard), and state whether their rates are in a proportional relationship or not (and why) using their respective unit rates as evidence.
Answer:
my name is hailey
Step-by-step explanation:
A contractor must haul a large amount of dirt to a work site. She collected information from two hauling companies.
EZ Excavation gives its prices in a table.
dirt
(cubic yards) cost
(dollars)
8 196
20 490
26 637
Happy Hauling Service gives its prices in a graph.
How much would each hauling company charge to haul 40 cubic yards of dirt? Explain or show your reasoning.
Calculate the rate of change for each relationship. What do they mean for each company?
If the contractor has 40 cubic yards of dirt to haul and a budget of $1000, which hauling company should she hire? Explain or show your reasoning.
Answers -
How much would each hauling company charge to haul 40 cubic yards of dirt? Explain or show your reasoning. EZ evacauation --) $980 Happy Hauling --) $1000
Calculate the rate of change for each relationship. What do they mean for each company? EZ evacauation --) $24.5 per cubic yard Happy Hauling --) $25 per cubic yard
If the contractor has 40 cubic yards of dirt to haul and a budget of $1000, which hauling company should she hire? Explain or show your reasoning.
EZ evacauation --) it is less expensive
Using the cost function deduced from the graph and table, the rate of change of each function represents the amount charged per cubic yard of dirt.
Happy Hauling = $25 EZ contractor = $24.5EZ contractor is cheaperEZ Excavation cost function :
y = bx + cSlope, b = (637 - 198) ÷ (26 - 8) = 24.5
196 = 24.5(8) + c
196 = 196 + c
c = 196 - 196 = 0
Hence, EZ's cost function is y = 24.5x
For Happy Hauling :
Slope = (50 - 25) ÷ (2 - 1) = 25 ÷ 1 = 25
25 = 25(1) + c
c = 25 - 25 = 0
Hence, Happy family's cost function is y = 25x
Cost of 40 cubic yard of dirt :
Happy Family ; y = 25(40) = $1000
EZ contractor = y = 24.5(40) = $980
Therefore, EZ contractor should be hired as they have a lesser fee.
Learn more : https://brainly.com/question/15370209
Can you please help me on the question
Answer:
answer is h
Step-by-step explanation:
you have to multiply, for example 6x2=12, but the answer is 6, so you have to divide by two after you multiply.
Find the percent increase in volume when 1 foot is added to each dimension of the prism. Round your answer to the nearest tenth of a percent.
Answer:
120
Step-by-step explanation:
Which survey is biased?
A. Going to the mall and asking people what their favorite color is.
B. Going to the mall and asking people what their favorite place to shop is.
C. Going to the mall and asking people what television channel they watch most.
D. Going to the mall and asking people what radio station they listen to most often.
What does the point (20,40) on the graph represent?
А
In 20 minutes Emily has completed 40 multiple-choice questions.
B
In 40 minutes Emily has completed 20 multiple-choice questions.
С
Emily is completing 20 multiple-choice questions per hour.
D
Emily is completing 40 multiple-choice questions per hour.
Can someone please help me with all 5 of these questions? You don't have to answer all 5 but I would appreciate it if you answered some. I will give brainliest and 20 points to whoever does help me with these questions.
Giving brainliest!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
4 is considered the median which is whichever value is in the middle, 3 3 4 4 6
the range describes the distance between the smallest value and the largest value, thus the data spans 3in between the lowest value of 3 and the largest value of 6
If you put $0.25 into a parking meter, you are paying for the right to keep your car parked for 15 minutes. You can pay more into the meter in order to buy more time. In this example, the INPUT or INDEPENDENT VARIABLE is:
Money
Time
Answer:
i think it would be time but dont quote me on that tho lol
Step-by-step explanation:
plz correct me if im wrong
Answer:
i think it would be time but dont quote me on that
Step-by-step explanation:
The equation of direct proportion y = kx is given by the table. Find the coefficient k,
copy the table and fill it in
Solve. due soon
Answer: The coefficient of k is -6
Where does the formula )) come from? 2a, 20 from standard form of a quadratic function from the labeling process of a quadratic function from the discriminant of a quadratic function from the quadratic formula
Answer:
Step-by-step explanation:
22
To make grape juice, water is added to a large cylindrical vat of grapes. If the diameter of the vat is 16 feet, what is the area of the base of the vat? Use 3.14 for π.
Answer:
200.96cm^2 base area
Step-by-step explanation:
Eq of circle area = πr^2
= 3.14 x 8^2
3.14 x 64
200.96cm^2
.
The area of the base of the Vat is 200.96 ft².
Base area of a cylinder:Area = πr²where
r = radius
π = 3.14
The grape juice is added to the large cylindrical vat. The diameter of the grape Juice is 16 feet.
Therefore,
Base area of the cylinder is a circle.
Base area = πr²
diameter = 16 feet
radius = 16 / 2 = 8 feet
Base area = 3.14 × 8²
Base area = 3.14 × 64
Base area = 200.96 ft²
learn more on cylinder: https://brainly.com/question/14480417?referrer=searchResults
Show your work on the 2 questions shown in the picture.
Answer:
1. The answer is b ≥ 4
2. m = -11; m> -11
Step-by-step explanation:
1. solve your inequality step-by-step.
-4b + 9 ≤ -7
subtract nine from both sides.
-4b + 9-9 ≤ -7-9
-4b ≤ -16
then divide both sides by 4,
-4b/4 and -16/4,
you get: b ≥ 4
2. to solve:
2m+18>-4
subtract 18 from both sides.
2m + 18 -18 >-4 -18
= 2m>-22,
divide both sides by 2,
2m/2, -22/2
you end up with: m > -11
Hope this helps. Graph attached
Mr. Carver is mixing soil for his garden. He wants the soil to be in the proportion of 1 part sand to 3 1/2 parts compost.
PART A
Complete the table to show how much compost he needs to add for each amount of sand to maintain the proportional relationship.
Sand: 1 - 3 - 5 - 7
Compost: 3 1/2 - ___ - ___ - ___ -
PART B
What is the unit rate of parts compost to parts sand? What is the unit rate of parts sand to parts compost?
Answer:
10 1/2 - 17 1/2 - 24 1 /2
Step-by-step explanation:
You multiply 3 1/2 by each part sand. So, 3 times 3 1/2, 5 times 3 1/2, and 7 times 3 1/2 :). The unit rate is 2/7 parts compost to one part sand, and 1 part sand to 3 1/2.
Consider the inequality 12 Determine whether each value of x makes the inequality true. Select Yes or No for each value.
**PLEASE HURRY**
1. Do some research and find a city that has experienced population growth.
Determine its population on January 1st of a certain year. Write an
exponential function to represent the city’s population, y, based on the
number of years that pass, x after a period of exponential growth. Describe
the variables and numbers that you used in your equation.
2. Find another city whose population starts larger than the city in part (a), but
that during this same time experienced population decline. Determine its
population for January 1st of the same year you picked for part (a). Write an
exponential function to represent the city’s population, y, based on the
number of years that pass, x after a period of population decline. Describe
the variables and numbers that you used in your equation.
3. Explain the similarities and differences between your equations in (a) and
(b).
4. During what year will the population of city (a) first exceed that of city (b)?
Show all of your work and explain your steps.
5. During what year will the population of city (a) be at least twice the size of
the population of city (b)? Show all of your work and explain your steps.
PLEASE USE PARIS AND CHICAGO FOR THE CITIES
Answer:
The city we will use is Orlando, Florida, and we are going to examine its population growth from 2000 to 2010. According to the census the population of Orlando was 192,157 in 2000 and 238,300 in 2010. To examine this population growth period, we will use the standard population growth equation
where:
is the population after years
is the initial population
is the time in years
is the growth rate in decimal form
is the Euler's constant
We now for our investigation that , , and ; lets replace those values in our equation to find :
Now lets multiply by 100% to obtain our growth rate as a percentage:
=2.2%
We just show that Orlando's population has been growing at a rate of 2.2% from 2000 to 2010. Its population increased from 192,157 to 238,300 in ten years.
B. Here we will examine the population decline of Detroit, Michigan over a period of ten years: 2000 to 2010.
Population in 2000: 951,307
Population in 2010: 713,777
We know from our investigation that , , and . Just like before, lets replace those values into our equation to find :
= -2.9%.
We just show that Detroit's population has been declining at a rate of 2.2% from 2000 to 2010. Its population increased from 192,157 to 238,300 in ten years.
C. Final equation from point A: .
Final equation from point B:
Similarities: Both have an initial population and use the same Euler's constant.
Differences: In the equation from point A the exponent is positive, which means that the function is growing; whereas, in equation from point B the exponent is negative, which means that the functions is decaying.
D. To find the year in which the population of Orlando will exceed the population of Detroit, we are going equate both equations and and solve for t:
We can conclude that if Orlando's population keeps growing at the same rate and Detroit's keeps declining at the same rate, after 31.36 years in May of 2031 Orlando's population will surpass Detroit's population.
E. Since we know that the population of Detroit as 2000 is 951307, twice that population will be . Now we can rewrite our equation as: . The last thing we need to do is equate our Orlando's population growth equation with this new one and solve for t:
We can conclude that after 45 years in 2045 the population of Orlando will exceed twice the population of Detroit.
The city we will use is Orlando, Florida, and we are going to examine its population growth from 2000 to 2010. According to the census the population of Orlando was 192,157 in 2000 and 238,300 in 2010. To examine this population growth period, we will use the standard population growth equation
where:
is the population after years
is the initial population
is the time in years
is the growth rate in decimal form
is the Euler's constant
We now for our investigation that , , and ; lets replace those values in our equation to find :
Now lets multiply by 100% to obtain our growth rate as a percentage:
=2.2%
We just show that Orlando's population has been growing at a rate of 2.2% from 2000 to 2010. Its population increased from 192,157 to 238,300 in ten years.
B. Here we will examine the population decline of Detroit, Michigan over a period of ten years: 2000 to 2010.
Population in 2000: 951,307
Population in 2010: 713,777
We know from our investigation that , , and . Just like before, lets replace those values into our equation to find :
= -2.9%.
We just show that Detroit's population has been declining at a rate of 2.2% from 2000 to 2010. Its population increased from 192,157 to 238,300 in ten years.
C. Final equation from point A: .
Final equation from point B:
Similarities: Both have an initial population and use the same Euler's constant.
Differences: In the equation from point A the exponent is positive, which means that the function is growing; whereas, in equation from point B the exponent is negative, which means that the functions is decaying.
D. To find the year in which the population of Orlando will exceed the population of Detroit, we are going equate both equations and and solve for t:
We can conclude that if Orlando's population keeps growing at the same rate and Detroit's keeps declining at the same rate, after 31.36 years in May of 2031 Orlando's population will surpass Detroit's population.
E. Since we know that the population of Detroit as 2000 is 951307, twice that population will be . Now we can rewrite our equation as: . The last thing we need to do is equate our Orlando's population growth equation with this new one and solve for t:
We can conclude that after 45 years in 2045 the population of Orlando will exceed twice the population of Detroit.
hope this helps
Step-by-step explanation:
I'll Give Brainliest BUT PLZ HELP Waaaaaaaaah!! :)
Answer:
profitability ratios (e.g., net profit margin and return on shareholders' equity)
liquidity ratios (e.g., working capital)
debt or leverage ratios (e.g., debt-to-equity and debt-to-asset ratios)
operations ratios (e.g., inventory turnover)
Step-by-step explanation:
XD and Lol
PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
253 square inches
Step-by-step explanation:
calculate the surface for each side and then add
Two lines, C and D, are represented by the equations given below:
Line C: y = x + 14
Line D: y = 3x + 2
Which of the following shows the solution to the system of equations and explains why? (5 points)
Group of answer choices
(6, 20), because the point does not lie on any axis
(3, 11), because the point lies between the two axes
(3, 11), because one of the lines passes through this point
(6, 20), because both lines pass through this point
y=x+14 line 1
y=3x+2 line 2
These are both the equation of lines written in slope intercept form
y=mx+b where m is the slope and the point (0,b) is the y intercept.
The first line has a slope of m=1. The 2nd line has a slope of m=3
Since these lines have different slopes, they are not parallel, thus they will cross at some point. What you have to determine is where the lines cross, which will be a point (x,y) that is on both lines.
We already have y solved in terms of x from either equation so we can use substitution to solve the system.
Since y=x+14 from line 1, put x+14 in place of y in the equation of line 2.
x+14=3x+2
solve for x.
Subtract x from both sides...
14= 3x-x+2
14=2x+2
subtract 2 from both sides
14-2=2x
12=2x
divide both sides by 2
6=x
We now have the x value of the common point. Plug the value 6 in for x in one of the original equations and solve for y.
y=6+14
y=20
These two lines cross at the point (6,20) which is a point the two lines have in common.
Hope I helped (SharkieOwO)
m = 3 and the line goes through the point (2,4)
in point-slope form, slope-intercept form, and in standard
Answer:
then you will need to wait for thsi can get you to your area
Step-by-step explanation:
help needed URGENT
look a t question
Answer:
42^5 42^3 42^abc
Step-by-step explanation:
guys plz help asap i need all work too i need this by midnight. dont answer if you dont know plz.
Answer:
Hindi ko Alam Yan kase Bata pa ako sorry
helpppp pleaseee i need a quick answer
Answer:
32 i think
Step-by-step explanation:
its 16 cm, so 2 full rotations would be 16 times 2
which is 32
Answer: 100.52
Step-by-step explanation: Circumference of circle = pi • diameter
pi • 16 cm • 2 rotations = 100.52
A formula for finding SA, the surface area of a rectangular prism, is
SA = 2(ab + ac + bc), where a, b, and c represent the lengths of the edges of the prism. What is the surface area of this prism if a = 12 inches, b = 6 inches, and c = 4 inches?
A. 240 in. 2
B. 248 in. 2
C. 288 in. 2
D. 258 in. 2
Answer:
first you need to make your shape to always get you stuff right and that is why the d is the right one.
Step-by-step explanation:
......................... Help Me ..................... PLEASE ........................ PRETTY PLEASE .........................
Answer:
-x+3
Step-by-step explanation:
brainliest please
plz help me ASAP
I need this answer fast please help me
Answer:
30% of $360 is $108.
Dax and his friends want to raise 108
If the simple interest on $1000 for 5 years is $250, then what is the interest rate?
Step-by-step explanation:
i=prt
250=(1000)((5)
250= 5000 r
250/5000 = r
r=0.05 or 5% internet rate
Answer:
5%
Step-by-step explanation:
Interest earned=
PV-PV(1+it)
we have
250=1000-1000(1+5i)
solve for i
-750= -5000i
250= -5000i
.05= i
heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp
Answer:
1. False
2. True
3. False
I'LL GIVE BRAINLIEST IF YOU EXPLAIN THE ANSWER:
Answer
A
Step-by-step explanation:
It could be A or C :D
This is a new thing we are learning and i do not get it
Answer:
48 inches is the numeric answer