HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLS
A special machine is used at a construction site to dig holes. A hole is dug to a depth of 4.75 feet when the machine hits rock. The progress slows to 3/5 feet per hour of digging. The depth of the hole must be at least 12 1/2 feet by the end of the day to stay on schedule. What is the minimum amount of time the machine must continue at its present rate to complete the hole on schedule? Select from the drop-down menus to correctly complete the statement.
Answers
Answer: 12 h ; 45 m
Step-by-step explanation:
*Important: From what I can see in this image, this appears to be a test. If this is the case, please do not cheat. In any case, here is the explanation.
What we know:
Progress has been made to 4.75Rate of digging is 3/5 mphDepth must be at least 12 1/2We need to find the minimum amount of time the machine worksHow to solve:
By setting up an algebraic equation, we can solve this.
Process:
Set up equation 4.75 + 3/5x = 12 1/2Convert 19/4 + 3/5x = 12 1/295/20 + 12/20x = 250/20
Subtract -95/20 -95/2012/20x= 155/20
Isolate x via division /(12/20) /(12/20)+Simplifyx= 12 11/20
Convert 12 h 33 mSolution: 12 ; 45
The minimum amount of time taken by the machine will be 12 hours and 55 minutes.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
An exceptional machine is utilized at a building site to dig openings. An opening is dug to a profundity of 4.75 feet when the machine hits the rock. The advancement eases back to 3/5 feet each hour of digging. The profundity of the opening should be no less than 12 ¹/₂ feet before the day's over to remain on time.
Convert the mixed fraction number into a decimal number.
12 ¹/₂ feet = 12.5 feet
Let 'x' be the time. Then the equation is given as,
(3/5)x = 12.5 - 4.75
Simplify the equation, then we have
(3/5)x = 12.5 - 4.75
(3/5)x = 7.75
x = 12.9167
x = 12 + 0.9167 x 60
x = 12 hours and 55 minutes
The base measure of time taken by the machine will be 12 hours and 55 minutes.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
Related Questions
Which equation is shown in the graph?
Best answer gets brainliest!
Answers
Answer:
C) y=x^2+x-6
Step-by-step explanation:
Looking at the first picture, the equation is way too high, thus A is incorrect
Looking at the second picture, the equation is also too high, thus B is incorrect
Looking at the third picture, the equation is at the graph, thus C is correct
Looking at the fourth picture, the equation is more at the right than at the left thus the equation is incorrect
Hope this helps!
Jaylen's beta fish tank holds 4 1/2 gallons of water. It takes him 1 7/8 minutes to fill it. What is the flow rate of the water in gallons per minute? (label your answer gpm) pls dont delete or post links Ty worth 29 points and brainlyiest
Answers
I had this same question! ill tell you what i got.
Answer:
12/5
Step-by-step explanation:
His fish tank is 4 1/2 gallons of water. It takes him 1 7/8 minutes to fill it. So you need to find out how many gallons you can pour in 1 minute. You can eliminate A (5/12) because he is filling more than 1 gallon per minute. You can divide 4.5 (4 1/2) by 1.875 (1 7/8). You get 2.4. Convert it back to a fraction, and you get 2 4/10. Simplify the fraction 2/5. Now convert it to an improper fraction. 12/5.
helpppppppppppppppppppppppppppppppppp
Answers
Step-by-step explanation:
The balance on a credit card, that charges an 18% APR interest rate, over a 1 month period is given in the following table:
Days 1-3: $150 (initial balance)
Days 4-20: $200 ($50 purchase)
Days 21-30: $50 ($150 payment)
What is the finance charge, on the average daily balance, for this card over this 1 month period?
round to the nearest hundredth
(PLEASE HELP, BRAINLIEST IF CORRECT) A jar is filled with quarters and nickels in the ratio 1 2/5 to 2 1/3. If there are 24 quarters in the jar, what is the ratio in dollar value of quarters to that of the nickels???
Answers
Answer:
40 nickels
Step-by-step explanation:
1 2/5 to 2 1/3 = 7/5 : 7/3
= 21/15 : 35/15
21/15 = 24
35/15 = x
(35/15 * 24) / 21/15
∴ 56 ÷ 21/15
= 40 nickels
Answer:
im just answering this so that the other person gets brainliest
HELPPPPPPP!!!! I NEED ANSWER QUICK!!!!
Answers
Answer:
x=8
Step-by-step explanation:
2(2x+7)=46
2x+7=46/2=23
2x=23-7=16
x=16/2=8
Answer:
x = 8.9
2(2x+7)=46
4x+14=46
4x=35
x=8.9
(not part of game show)
Which statement best sums up the most important purpose of the text features in Into the Unknown?
They make the text more interesting to read.
They tell readers what the main ideas of the text are.
They help readers visualize some of the central ideas of the text.
The artistic style helps readers understand the time period.
Answers
Answer:
C. They help readers visualize some of the central ideas of the text.
Step-by-step explanation:
The authors and readers visualize the book together, while the author is helping the readers out.
(Isn't this english? this is my only question.)
hope this helped.
A right triangle has sides of length 3, 4, and x. Find x if it is the hypotenuse.
HELP ME PLEASE
Answers
Answer:
5
Step-by-step explanation:
The rules for the hypotenuse is side a^2+side b^2=hypotenuse^2
a=3
b=4
3^2=9
4^2=16
9+16=25
5^2=25, so 5 is the hypotenuse.
:)
Regina can purchase packets of tea in four sizes. Which size is the best buy?
9-lb packet for $12.75
2-lb packet for $4.34
7-lb packet for $9.45
4-lb packet for $6.26
PLZ help, i'm on a test
Answers
Answer:
7 lb for $9.45
Step-by-step explanation:
12.75 / 9 = 1.42
4.34 / 2 = 2.17
9.45 / 7 = 1.35
6.26 / 4 = 1.57
The lowest answer is 7 lb for $9.45
The tables show the numbers of white and yellow flowers Cara and Hector used in 5 different arrangements.
Cara's Flower Arrangements
White 3 6 9 12 15
Yellow 5 10 15 20 25
Hector's Flower Arrangements
White 4 8 12 16 20
Yellow 6 10 14 18 22
Part A
Are the numbers of white and yellow flowers in Cara's arrangements proportional?
Which equation relates the number of white flowers, w, to the number of yellow flowers, y?
A. Yes; y=35w
B. Yes; y=53w
C. No; y=3w+5w
D. No; y=5+3w
Part B
Are the numbers of white and yellow flowers in Hector's arrangements proportional?
Write an equation to relate the number of white flowers, h, to the number of yellow flowers, e.
A. Yes; e=32h
B. Yes; e=23h
C. No; e=h+2
D. No; e=h−2
Answers
Answer:
Step-by-step explanation:
Part A
Yes, there is a proportional relationship in Cara's. For every 5 yellow flowers, there are 3 white flowers. 5:3. I didn't see an equation that would work for the equation in the question. The equation I found on my own would be 5w/3 = y
Part B
There is no proportional relationship in Hector's. The equation would be e=h-2.
include a explanation pls
Answers
Answer:
C
Step-by-step explanation:
Annette is surveying people in the city about their interest in a new shopping mall. She found that 180 people, or 37.5% of those surveyed, do not want a new mall. How many people did Annette survey?
Answers
We want to find the total number of people that Annette surveyed given that we know a percentage and the number that the percentage represents.
We will find that the number of people that Annette survey is 480.
To get the solution:
Let's assume that she surveyed a total of X people.
Then we can write the equivalence:
100% = X
We know that the 37.5% is equivalent to 180 people, then we can write:
37.5% = 180
The two equations are:
100% = X
37.5% = 180
Now we can take the quotient between these two equations to get:
(100%/37.5%) = X/180
Solving for X we get:
(100%/37.5%)*180 = X = 480
So the total number of people surveyed is 480.
Answer:
480 people
180/X × 100 = 37.5%
180 × 100 = 37.5 × X
18000 ÷ 37.5 = 37.5 × x ÷ 37.5
480 people = x
Use prime factorization to find the GCF (greatest common factor) of the following sets of numbers. Show the steps you used to find the GCF. 1) 18: 20: GCF: 15: 25: GCF: 40: 32: GCF: 12: 22: GCF: 10: 20: GCF: 9: 16: GCF: 30: 15: GCF: 15: 35: GCF: 14: 28: GCF: 24: 8: GCF: 45: 27: GCF: 36: 42: GCF: 2)3) 4) 7) 10) 5) 8) 11) 6) 9) 12)
Answers
Answer:
It’s too hard
Step-by-step explanation:
TwT
2 more questions left please help with this fast!!! IXL question
Answers
Hopeeeee this helps
Pls help me understand this problem
Rick paints a circular table that has a diameter of 16. What is the area of the table?
Answers
Answer:
The area of a circle is πr^2
π = 3.142
so the answer is 3.142 × 8^2 = 201.088
That's what I got
(3.14)(8)^2
200.96 = area of the table
Giovanni can read 210 words per minute. If there are approximately 540 words on a page, about how many pages can he read in 3 hours? Round your answer to the nearest whole number.
462 pages
122 pages
233 pages
70 pages
Answers
She can read 70 pages in 3 hours.
What is proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
We are Given:
Giovanni can read 210 words per minute and, books contain 540 pages
So, she can read the portion of book
=210/540
= 21/54 per minutes
= 21/54 x 60
= 23.3 pages in one hour
and in 3 hours she can read
= 23.3 x 3
= 70 pages in 3 hours
Learn more about unitary method here:
brainly.com/question/22056199
#SPJ2
Which expression use the associative property and make it easier to evaluate 6 (3/2 x 1/5)
Answers
Answer:
D
Step-by-step explanation:
Associative property moves the parentheses, but the numbers stay in the same order.
Please help please and thank you
Answers
Answer:
The answer is 1.5
Step-by-step explanation:
The answer is 1.5
1. How many feet long is the space Mr. Hamilton wants to fill with pictures? Explain how you know
2. Convert this length to inches
Answers
Answer:
4 feet I think
Step-by-step explanation:
Can you help me with this, and give me a proper explanation?
thanks (will mark brainliest) (///^.^///)
Answers
First the rectangle at the top is 20 x 5 which is 100
To figure out the base of the triangle you would look at the width of the second rectangle and from that you would do 20 - 6 so the base of the triangle is 14
With that you would do 14 x 8 = 112 divided by 2 = 56
The area of the second triangle at the bottom is 108 because 6 x 18 = 108
108 + 56 + 100 = 264m squared (squared because it’s area)
Answer:
perimeter=163
Step-by-step explanation:
the document below explains it but i dont know if it was right
T-T help, i do not understand functions....
Answers
2. Rate of change is 1.5
3. Rate of change is -1x
4.Rate of change is 1/4
PLEASE ANSWER BOTH QUESTIONS. Use Graph to help answer them. NO LINKS.
Answers
B- 5
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:45
Step-by-step explanation:
on edge
Which ordered pair is a solution of the following system of linear inequalities: y≤x+2y+x≥4
Answers
Answer:
A
Step-by-step explanation:
[tex]y\leq x+2=3\leq 1+2\\\\y+x\geq 4=3+1\geq 4[/tex]
HOPE THIS HELPS YOU!!!!!!! :) :) :)
SORRY IF IT'S WRONG
3.017 + k = 5.134
what is k?
Answers
Answer:
K = 2.117
Step-by-step explanation:
5.134 = 3.017 = 2.117
Answer:
k=2·117
Step-by-step explanation:
you welcome
solve 2 (3x - 1) - 6
give an explanation pls
Answers
Step 1: Distribute [ Multiply 2 by the numbers in the parentheses]
6x - 2 - 6
Step 2 : Subtract [ Like terms ]
6x - 8
Answer:2(3x-4)
Step-by-step explanation:
Step 1: Distribute
2(3x-1)-6
6x-2-6
Step 2: Subtract
6x-2-6
6x-8
Step 3: Common Factor
Factor by grouping
2(3x-1)-6
2(3x-4)
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%
Speedy Boat Rental charges a 15$ deposit fee plus a 2$ for each hour of use to rent a paddle boat. Witch equation is right?
1. x=15y+2
2. y=15x+2
3. y=2x+15
Please give me a real answer. I will give you extra points.
Answers
Answer:
it's 2
Step-by-step explanation:
2. y=15x+2
a. What fraction of the students chose Website A? Write your answer in simplest form.
Answers
Answer:
no se hablar taka taka XD
give a step by step explanation pls
Answers
Answer:
D
Step-by-step explanation:
20/5=4
28/7=4
[tex]2(6p-5)\geq 3(p-8)-1[/tex]
Which Numbers Can Be A Solution.
[tex]-2[/tex]
[tex]-\frac{9}{5}[/tex]
[tex]-\frac{3}{2}[/tex]
[tex]-\frac{7}{8}[/tex]
[tex]-\frac{1}{5}[/tex]