Answers
Answer:
Step-by-step explanation:
Related Questions
A special piece of equipment is used at a construction site to dig holes. A hole is dug to a depth of 3.25 feet when the equipment hits rock. The progress slows to 5/8 feet per hour of digging. The depth of the hole must be at least 11 1/2 feet by the end of the day to stay on schedule. What is the minimum amount of time the equipment must continue at its present rate to complete the hole on schedule?
Select from the drop-down menus to correctly complete the statement.
The equipment requires at least 13 or 23 hours and 2/6/12/36 minutes to complete the hole on schedule.
Answers
Answer:
13 hours and 12 minutes
Step-by-step explanation:
You put 3.25 as a fraction which is 3 1/4. then I took 3 1/4 and misused it by 11 1/2. 23/2 - 13/4 = 8 1/4 then we took the 5/8 and divided it by 33/4 (3 1/4) I got 13 1/5. 13 1/5 is 13 hours and 12 minutes.
Minimum amount of time taken to complete the hole is 13 hours and 12 minutes.
What is proportion?In mathematics, proportion is an equation where two ratios are taken to be equal to each other. Suppose if a:b = c:d, then [tex]\frac{a}{b}[/tex] = [tex]\frac{c}{d}[/tex].
In the question, it is given that, a hole is already dug to a depth of 3.25 feet = 3 [tex]\frac{1}{4}[/tex] feet.
Also, the depth of hole at the end of the day must be atleast 11 [tex]\frac{1}{2}[/tex] feet.
Remaining depth of the hole needed to dug = 11 [tex]\frac{1}{2}[/tex] - 3 [tex]\frac{1}{4}[/tex] = [tex]\frac{23}{2}[/tex] - [tex]\frac{13}{4}[/tex] = [tex]\frac{33}{4}[/tex] feet
Rate of digging is [tex]\frac{5}{8}[/tex] feet per hour.
We have to find how much time will be taken for [tex]\frac{33}{4}[/tex] feet.
In proportional form, it can be written as [tex]\frac{5}{8}[/tex] : 1 = [tex]\frac{33}{4}[/tex] : x, where x is the time taken to complete [tex]\frac{33}{4}[/tex] feet.
⇒ [tex]\frac{5}{8}[/tex] / 1 = [tex]\frac{33}{4}[/tex] / x
Cross multiplying, we get
[tex]\frac{5}{8}[/tex] × x = [tex]\frac{33}{4}[/tex] × 1
⇒ x = [tex]\frac{33}{4}[/tex] × [tex]\frac{8}{5}[/tex] = [tex]\frac{66}{5}[/tex] = 13 [tex]\frac{1}{5}[/tex]
Hence the minimum amount of time the equipment must continue at the present rate to complete the hole on schedule is 13 hours and 12 minutes.
To learn more on Ratio, click:
https://brainly.com/question/13419413
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help me pweas
Jacob sells homemade skateboard decks for a profit of $27 per deck. He is considering switching to a new type of material that will increase his profit, as expressed by the function y = 32x, where x is the number sold and y is the amount of profit.
How many more dollars will Jacob earn on each skateboard deck if he switches to the new material? Explain how you found your answer. (5 points)
Answers
Answer: I think that it is 32
Step-by-step explanation: I think this because in your equation it says (y=32x) which 32 will mean how much he is charging for each skateboard, x will be how many he sells, and y would be how much he makes from selling them. So if he sold 2 skateboards you would do 32 x 2 which equals 64 soo that would be (64=32x2) so it is 32
Answer:
32 <3
Step-by-step explanation:
What is the length, in units, of the line segment with endpoints at (1, 4) and (3, 7)?
A. √137
B. √15
C. √5
D. √13
Answers
Answer:
The answer is √13
Step-by-step explanation:
What is the distance between the points? Round to the nearest tenth if necessary.
Answers
Answer:
10/4
Step-by-step explanation:
rise over run
Please help! This is due tomorrow!
Answers
[tex]\left(\dfrac 14 x -7 \right) - \left(\dfrac 34 x - 5 \right)\\\\\\=\dfrac 14 x -7 - \dfrac 34 x +5\\\\\\=x\left(\dfrac 14 - \dfrac 34 \right) -2\\\\\\=- x\left(\dfrac 24 \right) -2\\\\\\=-\dfrac 12 x -2[/tex]
Answer:
-1/2x-2
Step-by-step explanation:
Distribute the negative sign from the right side to make the equation positive
1/4x - 7 + (-1)(3/4x) + (-1)(-5)
(basically multiplying -1 to 3/4x and -5 to eliminate it)
1/4x - 7 + -3/4x+ 5
Make the equation similar
(1/4x + -3/4x) + (-7 + 5)
combine like terms
1/4x + -3/4x = -2/4x --> Simplifies to -1/2x
Do the other integers
-7 + 5 = -2
Put it together
-1/2x-2
Create a scatterplot displaying the data in the table. Be sure to include a linear trend line. (2 points)
Answers
Can you show more information please?
Answer:
Using technology, the linear regression equation which models the data of the relationship between the number of customers served and tips received is :
y = 1.87x + 3.66
predicted amount of tip for 100 customers = $191
The predicted amount of tips received of 100 customers are served :
y = 1.87x + 3.66
x = 100 ; substitute x = 100 into the equation
y = 1.87(100) + 3.66
y = 187 + 3.66
y = 190.66
Hence, about $191 would be received on tips if 100 customers are recorded.
Using a regression calculator to make prediction from a data table :
Enter the x and y axis data into the appropriate column so that the calculator can display the actual data model. Hence, given a certain value of either variable, the predicted value of the required variable can be calculated from the model.
Step-by-step explanation: I'm not sure since you didn't add a picture
Marissa is biking with friends. Their distance traveled can be determined by the equation D = 13h, where D is the distance, in miles, and h is the number of hours spent biking. Identify the constant of proportionality.
Answers
Answer:
The 13 would be the constant.
Step-by-step explanation:
Bertha read 21 books. Each book had 155 pages. How many pages did she read altogether?
Answers
Answer:
3255
Step-by-step explanation:
21x3255=
answer: 3225
2
Which of the following representations are functions?
I only
II only
I and II only
I, II, and III
Answers
Answer:
I only
Step-by-step explanaition:
The domain (x) can not repeat in order for it to be a function.
i did this last week
There are 4 quarts in a gallon and 4 cups in a quart. How many cups are in one serving?
Show and explain your work/answer
Answers
Answer: 16 cups
one serving is a gallon.
4c = 1q
8c = 2q
12c = 3q
16c = 4q
-ㄚㄩ尺丨
What is the range of possible sizes for side x
Answers
Answer:
...
Step-by-step explanation:
There is a 15% of sale on a play station five . If the original cost is $700 , what is the sale price on the play station 5 .
Answers
Price of the playstation 5 = 595
Answer:
$995
Step-by-step explanation:
First, we have to multiply 700 by 15.
700
x. 15
---------
3500
+700
---------
10500
After that you must move the decimal (starts from the right) 2 to the left
10500------>105.00
Once you get 105.Subtract 700-105
700
-105
----------
$595
Therefore the sale price is $595
Mr. Bloss made 36 out of 48 free throws while practicing for basketball. What percent of his free throws did he make?
Answers
Answer:
75%
Step-by-step explanation:
We can see that our fraction is 75/100, which means that 36/48 as a percentage is 75%.
Answer:
75%
Step-by-step explanation:
To find the percentage of successes, simply divide the number of successes by the number of tries. Hence 36/48=.75. Then, multiply by 100% to get the percentage value --> .75x100%=75%
PLS HELP DUE SOON. ALSO SHOW HOW U SET UP PROBLEM
Answers
Answer:
0.5% walk
Step-by-step explanation:
7/1400×100%
1/200×100%
1/2%
Because: 758+530+7 = 1400
1400 : 14 = 100
So 7 : 14 = 0.5
Can you please help me?
Answers
3(8)^2=3x64
12 divided by 2/5 whats the answer
Answers
Answer:
12.4 is the answer
12/0.4=30
So the answer is 30
Help please with these solutions
Answers
Answer:
a
Step-by-step explanation:
just needed the points, sorry
1.a
2.b
3.c
4.d
reread lines 9-18. underline the parts of a bats body that humans also have. Study the image of the bat. How does showing body parts similar to a humans help you better understand a bats body? Support your answer with explicit textual evidence.
Answers
Answer:1/2 of an answer is zero answer.
Step-by-step explanation:
Select the expressions that are equivalent to 9d+4d.
Answers
d • 13
7d + 2d + 4d
13d
Answer:
The first one, second one, and the last one. not the third one because 9d+3d=12d not 13d
Step-by-step explanation:
Select all of the algebraic expressions that could represent the phrase below.
Answers
Step-by-step explanation:
9 more = + 9
the product of 5 times t = 5t
so, the answer options 1, 2 and 4 are correct
Chris went to the store to buy some sports equipment. His mother had given him $30.00 to spend, and Chris took some of his own money along. He bought shin guards for $15.00, 2 pair of soccer socks for $7.99 each and a mini-soccer ball for $9.99. How much of his own money did he need to use?
Answers
Answer:
10.97
Step-by-step explanation:
Add 15, 7.99, 7.99, and 9.99. Then subtract 30 witch = 10.97
It’s 10.97
N + 1 - 3N = 9 - N (IN A TEST)
Answers
Answer:
N= -8
Step-by-step explanation:
a
hope this helps!!:)
2 more questions left please help with this fast!!! IXL question
Answers
Hopeeeee this helps
A cylindrical glass holds 37683768 cubic centimeters of water. It has a height of 1212 cm. Find the area of the base of the glass.
Answers
Answer:
31092.2178
Step-by-step explanation:
Divide the volume (37683768) by the height (1212) to get the area/length x width.
37683768 / 1212 = 31092.2178
i need help i will give 19 po.ints
Answers
-5 7/10
How?
13 4/5
8 1/10
you need similar denominators.
13 4/5 x 2 = 13 8/10
13 8/10 + ? = 8 1/10
8 1/10 + 5 7/10 = 13 4/5
(5 7/10 turned negative bc its below sea level and your technically adding.)
MAY BE INCORRECT!
Answer:
5 7/10
Step-by-step explanation:
you would need to subtract 13 4/5 - 8 1/10 t get positive 5 7/10
(i got this right o my test)
I need help quickly please have clear explanation and answer written in brainly
Answers
Answer:
ii
Step-by-step explanation:
i
2 x 11 = 22
22 - 19 = 3
3 = 14
3 x 11 = 33
33 - 19 = 14
6 = 47
6 x 11 = 66
66 - 19 = 47
10 = 91
10 x 11 = 110
110 - 19 = 91
Writing about Graphing a Fraction Explain how to graph 5 2 on the number line. A number line going from 0 to 3. There are 2 equals spaces between each number. The number line contains 0, point A is one-half, 1, point B is 1 and one-half, point C is between point B and 2, 2, point D is 2 and one-half, 3. I need help
Answers
the answer is uhhhhhhhhhh yes*
The original pattern for a dress is 3334 inches long. Kimmy needs her dress to be 3212 inches long. How much shorter than the pattern does Kimmy need to make her dress?
A.
123 inches
B.
114 inches
C.
214 inches
D.
112 inches
This Is 15 Points and will give brainliest! pls help asap!
Answers
Answer:
Answer: None of the above. If you subtract 3212 from 3334, you will get 122. The answer is none of the above.
Step-by-step explanation:
How you write a inequality and then graph the answer?
Answers
Answer:
To write an inequality, you need to write a number on the number line, and to graph it, you need to write another inequality and figure out what the answer is.
hope this helped.
Someone helpp ill give brainlist if its correct and a heart and a thanks a 5 rate star ; )
Answers
Answer:
The slope is at 87.
Please let me know if I am wrong. I tried.