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 1

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 works

How 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 1/2

95/20 + 12/20x = 250/20

Subtract -95/20 -95/20

12/20x= 155/20

Isolate x via division /(12/20) /(12/20)+Simplify

x= 12 11/20

Convert 12 h 33 m

Solution: 12 ; 45

Answer 2

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

A student has a container with a volume of 2.5 liters.
He estimates the volume to be 2.4 liters. By what percent is the student's estimate off?

Answers

Answer:

10%

Step-by-step explanation:

2.5-2.4=0.1

0.1=10%

The answer is 10% I hope it’s right

Pls help this is due tmr

Answers

A hop it helps! If not am sleeyr

Answer:

I need to write 20 characters ignore this

What is the distance between the points? Round to the nearest tenth if necessary.

Answers

Answer:

Im pretty sure its 11.6

Step-by-step explanation:

The answer is 1.7 rounded to the nearest tenth

plz help for 100 points what I need help with is in the pictures

Answers

I can’t see the picture

50 Points!

Two cars are traveling down the highway at the same speed. If the first car increases its speed by 10 kilometers per hour, and the second car decreases its speed by 10 kilometers per hour, then the first car will travel the same distance in two hours that the second car travels in three hours. What is the original speed of the cars?

Answers

Answer:

50mph

Step-by-step explanation:

Say for example car A increases by 10 miles per hour and car B decreases by 10 miles per hour. If car A2 = car B3 then by eliminating a few numbers and finally get to 50 you get the following equation.

A = 50+10

b = 50-10

A = 60

B = 40

A2 = 120

B3 = 120

120 = 120

Answer

50 mph

Step-by-step explanation:

3(s-10)=2(s+10)

3s-30=2s+20

s=50

Please help me!!! ASAP!

Answers

B. For every 3 rabbits there are 8 total animals.

Answer:

the answer is b

3 and 8 times two equals 6 and 16

A tortoise moves at a speed of 26 inches in 9 seconds. What is its average speed in feet per hour?
≈ 780 ft/h
≈ 867 ft/h
≈ 855 ft/h
≈ 936 ft/h

Answers

Answer:

867 ft/h

Step-by-step explanation:

26 inches = 2.17 feet

9 seconds = 0.15 of a minute = 0.0025 of an hour

2.17 / 0.0025 = 867

867 ft/h
EXPLANATION
26 in=2.17ft
9 sec = 0.0025 hr
2.17/0.0025 = 867

10 Points + brainliest.
7a + 50 = 247

Answers

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

Answer:

a= 190

Step-by-step explanation:

7a+50=247

=7a = 247-50

= a = 197-7

= a = 190

I shall give the right answer brainliest

Answers

Answer:

Step-by-step explanation:

Remember, 0.78 is pronounced 78 hundreths. Use that as a clue to find the awnser

Answer:

39 over 50 is correct

Step-by-step explanation:

i neeed help. this is due today

Answers

Answer:

I’d say letter A

Answer:

I think is D

Step-by-step explanation:

Because that part explains the most what will happen

Which expression is equivalent to the expression below?

15 + 10x - 14x - 9

Answers

Answer:

The last expression 9.

Step-by-step explanation:

hope this helps! let me know if I am wrong

which does not represent two equivalent expressions 51 MAFS.6.EE.1.1 Which does not represent two equivalent expressions?

A.) 33=3·3·3
B.) 43=4·3
C.) 64=6·6·6·6
D.) 52=5·5

Answers

Answer: B

Explanation: 4 times 3 is equivalent to 12 and the question was asking for exponents. A has 3 multiplied by itself 3 times so that is correct. C has 6 multiplying itself 4 times so that would be correct. D has 5 Multiplying itself 2 times so that would be correct. The only one that does not represent equivalency would be B.

Which of the following does not have 90 as a multiple?

7
6
5
3

Answers

Answer:

Step-by-step explanation:

I don't completely understand what you were asking, but if you were counting by 7's, 91 would be after 84 instead of just 90.

Answer:

Step-by-step explanation:

7x14=91, so 1 is not a multiple of 90. Don't really understand tho, plz comment if this is not what you meant.

On a coordinate grid, point L is at (-4, 4) and point S is at (8, 4). The distance (in units) between points L and S is ___.

Input whole numbers, such as 2.

(numerical numbers as expected!)

Answers

Answer:

(12,0)

Step-by-step explanation:

count up from -4 to 8, then the other coordinate is the same so it will stay

help me and i will mark you the brainlyist

Answers

1a. n ≤ 21
1b. n ≥ 5
1c. n > 3/5

2d. n < 14
2e. n ≥ 14

The answer is what the guy above said

RectangleA′B′C′D′ is the image of rectangleABCD after a dilation.

What is the scale factor of the dilation?

Answers

The length of the side of the original is 3 units.

The length of the side of the smaller one is 1.5

Scale = 1/2

The lenth of the side units are 3

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.

l only

i did this last week

What is the least common denominator of the four fractions listed below? (50 points!)

Answers

Answer:

100

Step-by-step explanation:

100^^cccffggggdfhhggfffft

PLS HELP IM GONNA FAIL MATH
How long is the fence around a circular field with a radius of 340 ft.?

Answers

Answer:

so you are trying to find the circumference and the formula is 2πr

so the answer is 2 × 3.142 × 340 ft = 2136.56 ft

I think that's the answer

The answer would be 2 x 3.14 x 340ft = 2021.60

I need assistance with this

Answers

Answer is 1 1/2 and -1 1/5

include a step by step explanation pls ty

Answers

the division problem is 7 divided by 15. this can be written as 7/15. to do this, you first know that 15 doesn't go into 7, so you add a decimal point, and make the 7 70. 15 goes into 70 4 times. 15 times 4 is 60. 70-60 is 10. 15 doesn't go into 10, so you add another 0 and bring it down. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. 15 doesn't go into 10, so you bring down another 0. 15 goes into 100 6 times. 15 times 6 is 90. 100-90 is 10. at this point, you can probably guess that the 6 will go on for a while. this means it is repeating. this means your answer is "a".

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

10/4 hope this helped <3

solve 2 (3x - 1) - 6

give an explanation pls

Answers

Answer: 6x - 8

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)

I need help quickly please have clear explanation and answer written in brainly

Answers

Answer:

Step-by-step explanation:

2 = 3

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

i shall give the right answer brainliest

Answers

Answer:

D i think

Step-by-step explanation:

Answer:

I belive it is 4 to the power of 7

Step-by-step explanation:

BE READY, GAME SHOW
Hii, (game show to help me with this question, be ready pumpkins!)

GAME SHOW!!!! HELP ME OUT!

Which equation can be used to solve the problem?

750 is 150 percent of what?

WINNER=BRAINLIEST AND MOVES ON THE THE SECOND ROUND GOOD LUCK FIRST TO ANSWER

Answers

Answer:

750/150 * 750/x

Step-by-step explanation:

Answer:

One equation that can be used is this: 7.50 * 150 =

The other equation is 750% of 150.

Hope this helps!

I have too much brainliest so the other one can have it.

How to calculate distance between two points (-3,2) and (3,0).
And pls find the radical

Answers

√74
Explanation:
To calculate the distance use the
distance formula
d=√(x2−x1)^2+(y2−y1)^2

−−−2
where
(x1,y1)and (x2,y2)
are 2 coordinate points
The 2 points here are (-3 ,7) and (4 ,2)
let(x1,y1)=(−3,7) and (x2,y2)=
(4,2)⇒d=√(4−(−3))2+(2−7)2=√49+25=√74←in radical form

I think it’s y=3x-9?

Select the expressions that are equivalent to 9d+4d.

Answers

The answer is
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:

What is the y-intercept y = -6x - 5

1. (0, -5)

2. (5, 0)

3. (0, 5)

4. (-5, 0)

Answers

Answer:

(0,-5)

Step-by-step explanation:

Hope this helps :)

Hello. The y-intercept is (0,-5).

Graph the solution to this inequality on the number line. −1/3x + 1/2 ≥ −3/4

Answers

Answer:

4.5 (4.5 units to the left of 0) Make sure to draw a solid dot over 4.5 and an arrow pointing in the right direction.

>= is the greater than or equal to symbol

Step-by-step explanation

1. Combine like terms- In this problem, the like terms are 1/2 and -3/4, so to move 1/2 over to the other side of the equation, we have to divide each side by 2/1, which is the same as multiplying each side by 2: -1/3x + 1/2 * 2 >= -3/4 * 2.

2. Separate the fraction from x- Now, we simply divide each side by -3/1, which is the same as multiplying each side as -3: -1/3x * -3 >= -3/2 * -3

3. Graph on the number line- We've found that x = 4.5. To check, substitute in 4.5 for the value of x: -1/3(4.5) + 1/2 >= -3/4. -1 >= -3/4 is a true inequality. To graph it on the number line, draw a solid dot over 4.5 and an arrow in the direction of the righthand side.

Other Questions

A recipe for apple crisp uses 4 parts oats,8 parts brown sugar,and 10 parts flour. In simplest form,how many parts of brown sugar are there for every part of flour? Between what two whole numbers is the length of thediagonal from M to N in the rectangular prism?HELP ASAP I put a pic. A wagon of dog treats (combined mass 55 kg) is rolling at 2.1 m/s. A dog with mass 21 kg dives into the wagon, colliding with just enough momentum to make both stop. If the collision between the dog and the wagon lasts 0.1 s, what is the magnitude of the average force that will be exerted on the dog by the collision with the wagon What is the equation for the line in slope-intercept form? Sujet: prfriez vous jouer dans la rue avec vos camarades ou rester la maison surfer sur Internet ? Juan earns a gross pay of $44,500. His employee benefits are 18% of his gross pay. What is the value of his benefits? Describe what this graph reveals about Holly's trip and the motion of the car. Who are the children of spring and why are they called children What are Mendel's two laws? What is the longitude of station X when it is 9.00am while in Nairobi at longitude 37 degree the time is 12.00 noon? 2. Carrie is studying the genes of two fruit flies inher lab. She knows what alleles they have. She SCIENCE QUESTION wants to know the potential combinations ofalleles their offspring could inherit. Which ofthese choices would help Carrie identify thepotential combinations?A. an alleleB. a carrierC. a pedigreeD. a Punnett square Should the United States have access to nuclear weapons today? Find the slope of the line that passes through (-10, -52) and (56, -37). Functions f(x) and g(x) are define below.f(x) = -sqrt x+2-3 g(x) = -2|x-3|+4determine where f(x) = g(x) by graphing. Rewrite this equation below into standard formy=37x Energy from hot magma is calleda magneticb. geothermalC)nucleard hydroelectricPlease select the best answer from the choices provided Which of the following non-renewable resources of energy has the smallest amount of fuel left on earth?. After food in the stomach is mixed with gastric juices, it forms a semiliquid called Select one: a. phlegm b. chyme c. bile d. feces e. bolusin Jermaine and Kesha are married, file a joint tax return, have AGI of $82,500, and have two children. Devona is beginning her freshman year at State University during fall 2021, and Arethia is beginning her senior year at Northeast University during fall 2021 after having completed her junior year during the spring of that year. Both Devona and Arethia are claimed as dependents on their parents' tax return. Devona's qualifying tuition expenses and fees total $4,000 for the fall semester and Arethia's qualifying tuition expenses and fees total $6,200 for each semester during 2021. Full payment is made for the tuition and related expenses for both children during each semester. The American Opportunity credit available to Jermaine and Kesha for 2021 is: 5) find the value of x and y