Answers
Answer:
a. the relationships between the area of walls left to paint and the time they have been working
b. Company 1
c. Company 2
d. Company 1 = 147 hours, company 2 = 162 hours
Step-by-step explanation:
a. The linear functions model the relationships between the area of walls left to paint and the time they have been working.
b. Company 1 is painting faster because the first line has a slope of -1000/7 while the second line has a slope of -100/9, which means Company 1 is painting 100 ft^2 every 7 hours while Company 2 is painting 100 ft^2 every 9 hours. Therefore Company 1 is going faster.
c. Company 2 had less area to paint when they began because at the 0 hour mark, company 1 had 2100 ft^2 to paint and company 2 had 1800 ft^2 to paint.
d. Company 1 will take 21*7=147 hours to finish. Company 2 will take 18*9=162 hours to finish.
I hope these solutions were helpful. Happy mathing!
Related Questions
The table shows the amount of gas, in gallons, a truck has left after it is driven at a constant rate for a certain number of hours.
Number of Hours Driven Amount of Gas Left
3
9
4
6
5
3
Which statement is true?
The truck initially has
9
gallons of gas, and each hour
3
gallons of gas are used.
The truck initially has 9 gallons of gas, and each hour 3 gallons of gas are used.
The truck initially has
9
gallons of gas, and each hour
6
gallons of gas are used.
The truck initially has 9 gallons of gas, and each hour 6 gallons of gas are used.
The truck initially has
18
gallons of gas, and each hour
3
gallons of gas are used.
The truck initially has 18 gallons of gas, and each hour 3 gallons of gas are used.
The truck initially has
18
gallons of gas, and each hour
9
gallons of gas are used.
The truck initially has 18 gallons of gas, and each hour 9 gallons of gas are used.
Answers
Answer:
assuming I read this correctly
The truck initially has
18
gallons of gas, and each hour
3
gallons of gas are used.
The truck initially has 18 gallons of gas, and each hour 3 gallons of gas are used.
Step-by-step explanation:
Rebecca had these results when she drew 10 tiles from the bag. The bag has a total of 20 tiles. Her classmates got similar results. What is a good predication for the number of green and red tiles out of 20?
10 green 10 red
15 green 5 red
14 green 6 red
12 green 8 red
Answers
Answer: 15 green 5 red
Step-by-step explanation:
if its less likely to pull red than green you would to chose the lowest amount
(250 Points If your right!) Triangle ABC is similar to triangle DEF. Find the measure of side FD. (Round your answer to the nearest tenth PLEASE.)
Answers
Answer:
x=88.09
Step-by-step explanation:
19/11 = x/51
11x=969
x=969/11 or x=88.09
A. Change to Percent. Show your work.
1. 5.5 = _____
2. .75 = _____
3. .09 = _____
4. 5 1/2 = ___
5. 3/4 = _____
B. Change to Decimal
1. 2% = _____
2. 75% = _____
3. 1/2 = _____
4. 1/2 % = _____
5. 3 2/5 = _____
Answers
Answer:
1. 55%
2.7.5 %
3. 09%
4. 25.5 %
5. 1.33%
B
1 2.0
2. 7.5
3 1.2
4. 12
5. 6.5
Write the expanded form of the expression (using distributive property). -4(5x + 6)
Answers
Answer:
-20x - 24
you just multiply the factor on the outside by each on the inside.
Find the are of the composite figure.
Answers
Answer:
819
Step-by-step explanation:
to find the area of a shape you have to multiply lengths by width by height So Since this one is 7 ,13 and 9 multiply them together I think
maybe brainliest
The wheels of a monster truck are 66 inches tall. Find the distance the monster truck travels when the tires make one 360-degree rotation. Round to the nearest hundredth if necessary.
distance: about (BLANK) in.
Answers
Answer:
207.35"
Step-by-step explanation:
Ayo i need help fast!
Answers
Answer:
A
Step-by-step explanation:
if you need further explanation tell me but i'm assuming you're taking a test
Hostoso
In a survey, 250 adults and children were asked whether they know how to
swim. The survey data are shown in the relative frequency table
Can www
Carwin
034
0.06
0.12
To
What percentage of the people surveyed cannot swim?
O A 10%
OB, 18%
OC, 12%
0.6%
Answers
Answer:
B
Step-by-step explanation:
0.12 is 12 percent we also have the 0.06 percent which would just be 6 percent we need to add up those percentages to get 18 percent, for the people surveyed that cannot swim would be 18 percent.
Please help! As long as it is correct you will get brainliest!
Land developers are dividing a property into several sections to develop a new neighborhood, as shown below.
• Find the area, in square blocks, of the mall section of the property. Show all your work.
• Find the area, in square blocks, of the park section of the property. Show all your work.
• Find the total area, in square blocks, of the sections with homes. Show all your work.
• If the developers paid $500.00 per square block, how much did they pay for all the property being developed? Explain your answer.
Answers
Answer:
$97500.00
Step-by-step explanation:
the homes of the homes facing south is 10 times (7 plus 3) = 100 blocks
the area of the east facing homes is 8 times 10= 80 blocks
and the area of the trapezoid is 5 plus 3 times 3 = 15 blocks
so 100+80+15= 195 square blocks
195 times 500 = $97500.00
Describe the relationship between the area of a parallelogram and the area of a triangle if they have the same base and the same height.
Answers
Answer:
the area of the triangle is half the area of parallelogram
Step-by-step explanation:
Can you help me? i need help!
Answers
Answer:
The first one, second one, third one, and last one
Step-by-step explanation:
Please give brainliet!
Did I do this right?
If not can you tell me what I did wrong?
And please hurry, I need to get this done
Answers
Answer
sorry it's wrong
Step-by-step explanation:
A person on a moving sidewalk travels 6 feet in 3 seconds. The moving sidewalk has a length of 80 feet. How long will it take to move from one end to the other?
Answers
Answer:
40.5 seconds
Step-by-step explanation:
dose anyone know how to do this?
Answers
Answer:
Yes
Step-by-step explanation:
All of those are correct because the most is at three and three is in the center. 4 and 5 have a gap from 4 to 1 miles. and most of the miles is on the left.
Answer:
Just a
Step-by-step explanation:
Adele also must choose between leather or cloth seats for her vehicle. Leather seats come in three color choices; brown, black, and blue. Cloth seats come in two color choices; tan and gray. Using multiplication, Adele says she has (2)(3)(2), or a total of 12, choices for seat covers. Is she correct? Explain why or why not.
Answers
Answer:
6 choices
Step-by-step explanation:
Adele has to choose between leather or cloth seats for her car.
Leather has three colors, those being brown, black, and blue.
Cloth has two color choices, tan and gray.
You multiply the amount of choices for leather and cloth:
2 x 3 = 6
Adele is not correct.
hope this helps :)
Pic for question below.......
Answers
Answer:
c because 30+60+90=180 which is the sum of angles of a triangle
Answer:
A. No
B. No
C. Yes(Because it's 180degree; sum of angle of traingle)
D. No
Step-by-step explanation:
How much space does the triangle cover?
24 square cm
16 square cm
6 square cm
48 square cm
Answers
Answer:
24 square cm
Step-by-step explanation:
Answer:
24 square cm
Step-by-step explanation:
The area is length times height divided by 2
4*12/2=24
24 square cm
Please answer this for me. Thanks!
Answers
Answer: No
Step-by-step explanation:
Is 1/4 (8y -12) equivalent to 2y - 12? No. 1/4 (8y-12) equals out to 2y-3 not 2y-12. To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1
Hello! I really need help for numbers 14-16. Please help me.
Answers
Answer:
14: T=(0.75,-1) U=(0.75,1.25) V=(-0.75,1.25)
15: W=(-0.75,-1)
16: The error is that if something lies on the X Axis, it has a Y Value of 0.
W: (-0.75, 1.0)
16: Since the axis is 0 you put it on the y axis, because there is no way to plot x other than to the origin, so it would therefore be planted on the y axis.
PLEASE ANSWER!! Every second, an elevator either has a 50% chance of going up and a 50% chance of going down. If the elevator starts at floor 15, what is the probability that, after 5 seconds, the elevator is at floor 18?
THANK YOU AND SHOW YOUR WORK PLEASE!
Answers
Answer:
The number of ways to assing 7 floors to 5 passengers is 7⋅7⋅7⋅7⋅7
Step-by-step explanation:
The probability that, after 5 seconds, the elevator is at floor 18 is 16807.
Every second, an elevator either has a 50% chance of going up or a 50% chance of going down.
If the elevator starts on floor 15.
What is the meaning of arrangement?An act of arranging; state of being arranged
The number of ways to assign 7 floors to 5 passengers is,
We have the arrangements,
= 7⋅7⋅7⋅7⋅7
=16807
To learn more about the arrangement visit:
https://brainly.com/question/860037
An architect creates a scale model of a building with a scale of
5 cm =4 m. If the actual building is 32 m tall, how tall is the scale model?
Answers
5cm=4m
Multiply both sides by 8
40cm=32m
The following tree diagram shows the possible outcomes for the experiment.
What is the probability of getting exactly 2 tails?
Enter your answer as a reduced fraction, like this: 3/14
Answers
Answer:
It should be 1/2 because they both have the same amount of wins and loses.
If you spun the spinner 1 time, what is the probability of landing on either a white piece or a gray?
the circle in the picture has 3 gray and 5 white
there are 9 pieces in total
Answers
Answer:
[tex]\frac{8}{9}[/tex]
Step-by-step explanation:
So, there are 8 pieces with color and 1 piece without the wanted color.
The equation for finding the probability is: [tex]\frac{sum of terms }{number of terms }[/tex]
Therefore: 3 + 5 = 8 and 9 pieces in total
so the correct answer should be 8/9
Is it possible to solve the following system by using substitution? Which method, substitution or elimination is more efficient? Complete the explanation.
braceleftze 3x − 2y = 11
x + 2y = 25
possible to use substitution. Solve the second equation for x to get x =
y + 25. Substitute x in the first equation and solve for y. Then substitute this value for y in either original equation to get a solution of (
). The elimination method is
efficient because there are
calculations and they are
to do.
Answers
Answer: x = 5.5 and y = 2.75
Two fish tanks have measurements as shown.
Which tank has a greater volume? How much greater is its volume?
Use the drop-down menus to explain and show your answer.
Answers
0The volume of fishtank A is 200 cubic feet, and the volume of fishtank B is 160 cubic feet. So fishtank A has a greater volume than Fishtank B.
A tent has a triangular shaped net over the door. Jelena needs to sew a new net for the door. What is the minimum amount of material needed if the triangle has a height of 52 inches and a base of 60 inches?
1560 square inches
112.5 square inches
3120 square inches
112 square inches
Answers
Answer:
3120 square inches
Step-by-step explanation:
Answer:
1560 square inches
Step-by-step explanation:
52*60/2
Height*Length/2
1560 square inches
Write an equation that you can use to solve for x.
Enter your answer in the box.
Answers
Answer:
40 degrees
100-60=40
Step-by-step explanation:
The angle x is in another angle that looks like 100 and 100 minus 60 is 40.
Hope this helps and if it is correct.
Answer:
Step-by-step explanation:
Remark
x + 60 together make up an angle that is vertically opposite the 100 degree angle.
Vertically opposite angles are equal.
Equation
x + 60 = 100
Solution and Answer
x + 60 = 100 Subtract 60 from both sides.
x + 60-60 = 100 - 60 Combine
Answer: x = 40
(20 POINTS) One side of a trapezoid is extended and the dotted line forms a right angle with the extended line.
Answers
Answer: p = 115* (degrees)
Explanation:What we know:
The trapezoid forms a right triangleThe right triangle has the angles 25*, 90*, and an unknownThe internal angles of a triangle add up to 180*The unknown value p is a supplementary angle to the right triangle's unknown angleHow to solve:
By finding the degree of the 3rd angle in the right triangle, we can use the rules of supplementary angles to find the value of p.
We will use D to represent the total amount of degrees, which will equal 180*. X will represent an unknown angle. An asterisk represents the degree symbol.
Process:Missing right triangle angle
Set up equation D = 25 + 90 + x
Substitute 180 = 25 + 90 + x
Simplify 180 = 115 + x
Isolate variable -115 -115
Solution 65* = x
Value of p using supplementary angles
Set up equation D = x + p
Substitute 180 = 65 + p
Isolate variable -65 -65
Solution 115* = p
Answer: p = 115*Check:
We can do a check based on estimation. Assuming that the trapezoid and triangle form a box with all 90* corners and that p = 115*, then adding p and all of the other trapezoid angles should result in 360*
Firstly, we need the values of these 4 angles.
The first angle, labeled p, should be 115*. If our equation is untrue, then this value will fail the check.
The second angle will be the one at the bottom-left, which is 90* according to our box statement.
The third angle is the one located at the bottom-right, which is also 90* from the box statement.
The fourth angle is not 90* or 115*, but we can solve its value.
Because we have stated that the right triangle and trapezoid form a box with 4 90* corners, the sum of the fourth angle and the 25* from the right triangle must form a right angle. Let's find the value:
D = 25 + x
90 = 25 + x
(90 = 25 + x) - 25
65* = x
Therefore, the fourth angle has 65*
Now, adding the degrees from all 4 angles should result in a total of 360*. If it does, then our value of p = 115* will pass the check.
D = 90 + 90 + p + x
360 = 90 +90 + 115 + 65
360 = 180 + 180
360 = 360
Therefore, p = 115*
Answer:
C
Step-by-step explanation:
A and B are out because we can already tell that 65 and 75 are smaller than the 90 degrees whichs this angle is even higher than.If you see or use a protrater you can see it seems more likely to 115 because 155 would be much more open.
lol please help im bad at maths ;n;
Answers
Answer:
60
Step-by-step explanation:
You want to then multiply 5*4*3 to represent the different combinations we can make for each place. This gives us a total of 60 different possible ways that the runners can come in 1st, 2nd, and 3rd place, assuming no ties.