Answer:
The maintenance electrician takes 287.555555566667 hours to to rewire all the motors
Step-by-step explanation:
1. Calculate all of the minutes for all the numbers.
It takes you 26.6666667 minutes to rewire 2/3 of a motor.
It takes you 160 minutes to rewire 4 motors.
It takes you 266.666667 to rewire 6 2/3 motors
It takes you 7,200 minutes to rewire 180 motors
It takes you 9,600 minutes to rewire 240 motors
2. Add all of the minutes together.
26.666667 + 160 + 266.666667 + 7,200 + 9,600 = 17253.333334
It takes you 17253.333334 minutes to rewire 431.333333 motors
3. Convert minutes to hours
17253.333334/60 = 287.555555566667
It takes you 287.555555566667 hours to rewire all the motors
PLEASE HELP 20 POINTS...PLEASE HELP
Answer: the slope of this line is 2/3
Step-by-step explanation:
If you use rise/run, you will find that rise=2 and run=3, so the slope 2/3.
Answer: -2/3
rises by 2 and runs by 3
using points (0,2) and (-3,3)
I hope this is good enough:
How many roots do the functions have in common?
f(x)=x^2-4x-5
Answer:
the answer for me was b
Step-by-step explanation:
A quadratic function,
f(x) = x²-4x-5 have 2 roots.
What is a quadratic function?A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function. In other terms, a "polynomial function of degree 2" is a quadratic function.
Given:
A quadratic function,
f(x) = x²-4x-5.
To find the roots:
f(x) = x²-5x+ x -5.
f(x) = (x - 5) (x+ 1)
The roots are x = 5 and -1.
Therefore, the roots are x = 5 and -1.
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What is 3/4 x 2/3?
Pls help!!!!!!
Answer:
1/2
Step-by-step explanation:
3/4 × 2/3
3 × 2/4 × 3
6/12 = 1/2
Thus, 3/4 × 2/3 = 1/2
-TheUnknownScientist
Answer:
The answer would be 1/2 or 0.5.
Step-by-step explanation:
1.) Multiply the numerators
3x2=6
2.) Multiply the denominators.
4x3=12
3.)Simplify the fraction.
6/12=1/2 or 0.5
Which sentence would NOT represent the inequality below? 3x +4 < 2x-6 A. The sum of three times a number and four is less than or equal to twice the same number minus six. B. The product of three and a number added to four is at least twice the same number subtracted by six. C. The product of three and a number added to four is at most twice the same number minus six. D. The surn of three times a number and four is less than or equal to the difference between twice the same number and six.
HURRY I WILL GIVE YOU BRAINLIST
Answer:
B. The product of three and a number added to four is at least twice the same number subtracted by six.Step-by-step explanation:
Given inequality
3x + 4 ≤ 2x - 6Comparing with wording of same inequality
A. The sum of three times a number and four is less than or equal to twice the same number minus six.
Yes, sameB. The product of three and a number added to four is at least twice the same number subtracted by six.
No, different. (at least is ≥)C. The product of three and a number added to four is at most twice the same number minus six.
Yes, same.D. The sum of three times a number and four is less than or equal to the difference between twice the same number and six.
Yes, sameI will give brainliest to the person who does this first
1. 8a+24
2. .12e
ill edit it when get the other answers
Brainiest? pls
A gym charges $8.75 for each swimming class and a one-time registration fee of $12.50. A student paid a total of $56.25. How many swim classes did the student take?
Answer:
He took 5 swimming classes.
Step-by-step explanation:
The problem states that the student paid a total of $56.25 for the classes and also the one-time registration fee. To find the number of classes, we should first subtract the one-time registration fee from the total.
$56.25 - $12.50 = $43.75
Now that we know he spent a total of $43.75 on the classes without the registration fee, we can divide that number by the cost of one class ($8.75) to calculate the total number of classes he took.
43.75 / 8.75 = 5
Evaluate the expression when a=-4 and x=5.
a-2x
Answer:
That would be -14.
Step-by-step explanation:
Answer:
it's -14 when u evaluate a-2x
what is the y- intercept of y=1+6x?
Answer:
1
Step-by-step explanation:
y=1+6x is the equation
y is the dependent variable = 1 is the y intercept and 6 is the slope and x is the independent variable.
Therefore, y intercept is 1
show work / explain it
Evaluate 6h when h=8h,
Answer:
48
Step-by-step explanation:
First you know that h=8h cancel out the h's and your left with 8. Next find out 6h is. We know that h is 8 so we can plug it in. Also when a number is right by a variable that means multiply example: 5d=5xd
6h=6xh
6x8
Now we multiply 6 times 8
Warning: If you don't know your multiplication facts you might want to either:
1. Count or add 8 six times 8+8+8+8+8+8. or add six 8 times.
2. or use a calculator :) Always helpful :D
The answer is: 48 Pls pick me for brainliest! Hope this helped! Have a great day!
Identify the slope of the following line y = - 2x + 7
Pleasee
Answer:
-2 or -2/1
Step-by-step explanation:
Since the equation is in y = mx + b form with m equaling the slope, we can see that -2 is in m's place, so -2 is the slope.
Which of the following results in the expression 0.86 x 22?
Answer: 18.92
Step-by-step explanation: Multiply
22 by 0.86
Answer:
18.92
Step-by-step explanation:
Multiply 0.86 times 22
2. A controller at the factory calls in employees on a flexible work schedule
during increased production cycles according to the sequence below.
10, 14, 18, 22, 26...
Answer:
i dont understand what u want us to do like?
5xy-x2t+2xy+3x2t asap
Answer:
7xy + 2x²t
Explanation:
5xy - x²t + 2xy + 3x²t
= (5xy + 2xy) + (3x²t - x²t)
= 7xy + 2x²t
An airplane is preparing to land at an airport. It is 41,300 feet above the ground and is descending at the rate of 3,100 feet per minute. At the same airport, another airplane is taking off and will ascend at the rate of 2,800 feet per minute. When will the two airplanes be at the same altitude and what will that altitude be? Use pencil and paper. Use two other methods to solve the problem. Explain which methods are easier to use and which are more difficult to use for the situation.
9514 1404 393
Answer:
after 7 minutes19,600 feetStep-by-step explanation:
Here's the "pencil and paper" solution:
The two altitude equations are ...
y = 41300 -3100xy = 2800xThey can be solved by setting the expressions for y equal to each other.
2800x = 41300 -3100x
5900x = 41300
x = 41300/5900 = 7
y = 2800·7 = 19600
The planes will both be at 19,600 feet after 7 minutes.
_____
Attached are solutions from a graphing calculator, and from a calculator app that is able to solve systems of equations.
I find the graphing calculator the easiest to use. I can enter equations using a keyboard, and the solution is displayed in a form that can be copied and pasted.
The calculator app on my phone requires equation entry using a small on-screen keyboard, with multiple key hits required to access some functions. (y is obtained by hitting the x key twice, for example.)
The "pencil and paper" solution is not so difficult, but requires a certain amount of writing (or good short-term memory). The solutions for x and y require separate calculations, whereas the other methods give both x and y at the same time.
Which statement describes the y-intercept of the graph of a proportional relationship?
Choose the correct answer below.
A.
The line intersects the y-axis of the graph above the origin.
B.
The line intersects the y-axis of the graph at the origin.
C.
It is greater than the x-intercept of the line.
D.
It is equal to the x-intercept of the line.
Answer:
B i worked out all of them and only b can fit
The line intersects the y-axis of the graph at the origin. The correct option is B.
What is a Proportional Relationship?A proportional Relationship is when a variable is in direct variation to another variable such that on increasing one the other proportionally increases.
The equation for a proportional relationship is
y ∝ x
y =kx
where k is the proportionality constant
The equation of a straight line is y = mx +c
here c is the intercept on the y-axis
Comparing the two equations, this can be confirmed that
c = 0
Therefore, the line intersects the y-axis of the graph at the origin.
The correct option is B.
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Beasley Office Supplies received an order for 7,384 tacks. If each box in the shipment contains 52 tacks, how many boxes do they need to include in the shipment?
Answer:
142
Step-by-step explanation:
hope this helps!
Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
x+57=90 (sum of complementry angle)
x=90-57
x=33
x+y=90 (sum of complementry angle)
33+y=90
y=90-33
y=57
Identify each following representation as a function or nonfunction and explain your reasoning.
Answer:
a) and c) - function, b) and d) - nonfunctionStep-by-step explanation:
As per definition, a function is such a relationship that each input has exactly one outputConsidering this we observe that:
a) functionb) not a function as input of -1 has two different outputs o and 1c) functiond) not a function as input of 0 has two different outputs 0 and 0.5What is 13.496 rounded to the nearest tenth?
A. 13
B. 13.4
C. 13.5
D. 14
Answer:
C
Step-by-step explanation:
The number right after the decimal point is the tenths place.
Which of these is not an integer?
5 points
6/3
3/6
6/2
Answer:
3/6
Step-by-step explanation:
Angle A and angle B are vertical angles with M angle A= x and M angle B equals 3X -60. What is M angle A
Answer:
m angle A = x = 30 degrees
Step-by-step explanation:
Vertical angles are equal.
So 3x - 60 = x
2x = 60
x = 30
Answer:
Vertical angles are always equal.
So you can set the equation up like this:
5x + 10 = 7x - 12
Subtract 5x from both sides. Then Add 12 to both sides.
22 = 2x
Divide both sides by 2.
11 = x
A bathtub holds 80 gallons of water. Water drains out of the tub at a rate of 2 gallons every thirty seconds. At this rate, how many minutes will it take a full bathtub to drain completely?
Given :
A bathtub holds 80 gallons of water.
Water drains out of the tub at a rate of 2 gallons every thirty seconds.
To Find :
How many minutes will it take a full bathtub to drain completely.
Solution :
We know, 30 seconds = 0.5 minute.
Rate of water flow per minute is given by :
[tex]R = \dfrac{2}{0.5}=4 \ gallons/min[/tex]
Let, bathtub will completely drain in x minutes.
So, 4x = 80
x = 80/4
x = 20 minutes
Hence, this is the required solution.
The population of Latvia in 1989 was 2 700 000. In 1994 it was 2 500 000. Calculate the percentage decrease in the population between 1989 and 1994
Answer:
7.4%
Step-by-step explanation:
Given parameters:
Population of Latvia in 1989 = 2700000
Population of Latvia in 1994 = 2500000
Unknown:
Percentage decrease in population = ?
Solution:
The change in population;
Change in population = 2700000-2500000 = 200000
Percentage decrease = [tex]\frac{Population change }{Population in 1989} x 100[/tex]
Percentage decrease = [tex]\frac{200000}{2700000}[/tex] x 100 = 7.4% decrease
Ms. W has 400 followers on Twitter and is gaining 75 followers each day. Mrs. Hill has 1,000 followers on Twitter, but is losing 25 followers a day. How many days will it take them to have the same number of followers?
Answer:
It takes 6 days.
Step-by-step explanation:
First, you have to form expressions for both of them in terms of x. Let x be the number of days :
Ms. W = 400 + 75x
Mrs. Hill = 1000 - 25x
Next, you have to compare it as we want to find out how many days in takes for them to have the same number of followers :
400 + 75x = 1000 - 25x
75x + 25x = 1000 - 400
100x = 600
x = 6
Please help will make brainiest !!
Answer:
CB = 13.75
Step-by-step explanation:
Since we know that A, B, and C are the midpoint of the sides, we know that line CB is proportional to QR (by 2)..
So, 27.5/2 = 13.75
what is x and measure b? please help:)
Answer: x= 22.5, angle B = 67.5
Step-by-step explanation:
90+3x+x= 180
4x = 90
x=22.5
3(22.5)= 67.5
Answer:
x = 22.5° B = 67.5
Step-by-step explanation:
90° + 3x° + x° = 180°
4x = 90°
x = 22.5°
every 30 seconds, Joan places a correct puzzle piece. How long would it take her to complete a 3000 piece puzzle?
Answer:
it will take her 90000 seconds to complete 3000 piece of puzzle
Step-by-step explanation:
every 30 seconds, a correct puzzle piece , meaning 1 piece
how long would it take her to complete a 3000 piece puzzle
so let x = how long it would take her to complete a 3000 piece puzzle
so if 30 seconds = 1 piece
x seconds = 3000 piece
x = 90000 seconds
18) The degree of P(x) = (x-1)(x+2)(x+3)(2x-5) is
4
3
2
1
what is 30% off of $166.00
Answer:
i think 165.7 u can try math-way
Step-by-step explanation:
Answer:
(166/100)30= $49.8
Step-by-step explanation:
