Answers
Step-by-step explanation:
the first step in my opinion would be find the norm(s) in this scenario.
100 pounds is a good norming weight.
the speed of these 100 pounds with a 10 HP motor is
50ft/30sec = 5/3 ft/s
so, then let's ask next what size of motor is needed to lift the same 100 pounds 40 ft in 40 seconds
40ft/40sec = 1 ft/s
to get the same speed as in the first case the motor need to be weaker (to move slower). and that goes by the same factor as the ratio between the 2 speeds :
5/3×f = 1
f = 3/5
10 HP × f = 10 × 3/5 = 30/5 = 6 HP
so, it takes a 6 HP motor to lift these same 100 pounds 40 ft in 40 seconds.
and now, how strong must the motor be to lift 800 pounds (= 8 times the original 100 pounds) with the same speed ?
well, 8 times
8×6 = 48 HP
so, it would take a 48 horsepower motor to lift 800 pounds 40 ft in 40 seconds.
the equation would then be
HP = p/100 × 6 = 6p/100 = 3p/50
HP = horsepower
p = pounds
the rest I cannot really answer, as I don't know your class and it's contents.
I hope I covered the topics of your class with that solution.
Related Questions
Greg has only nickels and dimes in his money box. He knows that he has more than $10 in the box. Let x represent the number of nickels in the box and y represent the number of dimes in the box. Which of the following statements best describes the steps to graph the solution to the inequality in x and y? (5 points)
a
Draw a dashed line to represent the graph of 5x + 10y = 1000, and shade the portion below the line for positive values of x and y.
b
Draw a dashed line to represent the graph of 5x + 10y = 1000, and shade the portion above the line for positive values of x and y.
c
Draw a dashed line to represent the graph of 10x + 5y = 1000, and shade the portion above the line for positive values of x and y.
d
Draw a dashed line to represent the graph of 10x + 5y = 1000, and shade the portion below the line for positive values of x and y.
Answers
Answer: Draw a dashed line to represent the graph of , and shade the portion above the line for positive values of x and y
Step-by-step explanation: Let
x------> the number of nickels in the box
y------->the number of dimes in the box
we know that
so
Multiply by both sides
-----> inequality that represent the situation
The solution of the inequality is the shaded area above the dashed line for positive values of x and y
The equation of the dashed line is
therefore
the answer is
Draw a dashed line to represent the graph of , and shade the portion above the line for positive values of x and y
Archie and Michael are helping their friend George move the washers and dryers from his laundromat to a larger building. Archie's truck is carrying three washers and four dryers that have a combined mass of 1260 kg Michael's truck is carrying two washers and three dryers that have a combined mass of 880 kg.
How much does one of George's washers weigh?
Answers
Answer:
A
Step-by-step explanation:
Yes
Translate this phrase into an algebraic expression.
7 increased by twice Goran's savings
Use the variable g to represent Goran's savings.
Answers
Answer: 2g + 7 or 7 + 2g
Step-by-step explanation:
7 increased by twice g can be represented as 2g + 7 or 7 + 2g
The difference between two numbers is 56. Five times the smaller is equal to 4 more than the larger. What are the numbers?
Answers
Explanation:
Let x = the first number
Let y = the second number
From what they give us, we know:
x - y = 56
5y = x + 4
Either one of the equations can be rearranged and substituted into the other equation to find one variable, or number.
5y = x + 4
5y - 4 = x or x = 5y - 4
x - y = 56
5y - 4 - y = 56
4y - 4 = 56
4y = 60
y = 15
To find the other variable (number), substitute that value in either equation.
x - y = 56
x - 15 = 56
x = 71
To check the solutions, substitute both variables into each equation to make sure they work.
x - y = 56
71 - 15 = 56
56 = 56
5y = x + 4
5*15 = 71 + 4
75 = 75
please help me asap, i suck at math tbh :)
ty!
Answers
y intercepts: (0,-6)
Answer:
Y intercept = (0,-6)
X intercept = (9,0)
Step-by-step explanation:
To find the y-intercept of an equation, let x = 0 and then solve for y
6(0) - 9y = 54 (6 times 0 gives us 0)
0 - 9y = 54 (subtract 9y from 0 gives you -9)
-9y = 54 (divide both sides by -9, the left side cancels out and the right side gives you -6)
y = -6 and x = 0
To find the x-intercept of the equation just let y = 0 and then solve for x
6x - 9(0) = 54 (9 times 0 gives us 0)
6x - 0 = 54 (subtract 0 from 6x gives us 6x)
6x = 54 (divide both sides by 6, left side cancels, right side gives 9)
x = 9 and y = 0
1) -64÷16+[12x{6÷(16÷10-2)}]
Answers
Answer:
= -30[tex]x^{6}[/tex]-4
i hope that helps and is right
If that is a multiplication sign then it is -184
if that is an x then it would be -4 -180x
Kent had $280. He spent 3/7 of his money on a present and 1/4 of his money on a meal. How much money did Kent spend altogether
Answers
Answer:
$190
Step-by-step explanation:
he spent 3/7·(280), or $120 on a present
he spent 1/4·(280), or $70 on a meal
he spent $190 altogether
Which of the following could be used to solve the triangle below?
Answers
Answer:
sine
Step-by-step explanation:
You roll one die 8 times. What is the probability of rolling exactly six fours
Please convert the fraction into a decimal
Answers
Answer:
4/8 = 1/2 = 0.5 is your answer
Suppose you know the area of the yard is 7,500 square feet. How can you find the value of a?
—help and it comes with a picture
Answers
Answer:
a = 50
Step-by-step explanation:
From the introduction, you know that the area is 3a^2
You also know that it is 7500 square feet. \
So the two must be equal
3a^2 = 7500 Divide by 3
a^2 = 7500/3
a^2 = 2500
The square root of 2500 is 50
sqrt(a^2) = sqrt(2500)
a = 50
Calculate the average of the numbers shown22,48,11 ,34,5
Answers
Answer:24
Step-by-step explanation:
22+48+11+34+5=120
120/5=24
Solve for h. (h − 8)(h + 2) = 0
Answers
Answer:
donwload the gautmaht this is very powerful calculator to math problems
Step-by-step explanation:
make this is helpful too you
What is mathmatics ?
Answers
Answer:
The abstract science of number, quantity, and space. Mathematics may be studied in its own right ( pure mathematics ), or as it is applied to other disciplines such as physics and engineering ( applied mathematics )..
Ex :- Plus , minus
I HOPE IT IS HELPFULMathematics is a very important field of study in human society that can be described as the study of:
Numbers Quantities Spatial elementsMathematics is a science and one that is constantly evolving to allow us better understand our surroundings.
There are several ways to study the subjects described above such as by applying them to things such as engineering and other sciences, or simply studying them on their own.
In conclusion, math is a science of numbers.
Find out more on mathematics at https://brainly.com/question/14473572.
Can ya'll help- none of the answers i've gotten match any answers-
Answers
Answer:
1 8/11
Step-by-step explanation:
Using a calculator you can determine this information easily. I recommend doing so.
the answer is
1 and 8/11
explanation
Solve for x
log2(5x-4)=4
Please show steps
Answers
Answer:
x=1.2
Step-by-step explanation:
2(5x-4)=4
distribute 2 to 5x and -4
10x-8=4
add 8 to negative 8 and 4
10x=12
now divide both sides by 10
10x/10= 12/10
x=1.2
The value of x for the logarithmic expression will be x=1.2.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given expression is log2(5x-4)=4. The value of x will be calculated as,
2(5x-4)=4
Distribute 2 to 5x and -4,
10x-8=4
Add 8 to negative 8 and 4,
10x=12
Now divide both sides by 10,
10x/10= 12/10
x=1.2
Therefore, the value of x for the logarithmic expression will be x=1.2.
To know more about an expression follow
https://brainly.com/question/28041634
#SPJ2
A car travels 32 miles for each gallon of gas. How many gallons of gas does it need to travel 192 miles?
Answers
what does 5/6 + (-4/9) (-2) equal
Answers
Answer:
HIya There!!!
________________________
To add fractions, find the LCD and then combine.
Exact Form:
31 /18
Decimal Form:
1.7 ¯ 2
Mixed Number Form:
1 13 /18
________________________
“Happiness resides not in possessions and not in gold, the feeling of happiness dwells in the soul.” – Democritus
________________________
Think of life as a mytery because well it sort of is! You don't know what may happen may be good or bad but be a little curious and get ready for whatever comes your way!! ~Ashlynn
The sum of 3 and m
A.x-3
B.1/2y
C.3+m
D.14+3x
E.x+5
F.14+4x
Answers
Answer:
C
Step-by-step explanation:
Answer:
the answer is C
Step-by-step explanation:
first of all thank you for reading this
it's addition which 3 + m
how to solve 1/2x +8 = 7+ 1/2x
Answers
[tex]\frac{1}{2}x +8=7+\frac{1}{2}x <=>\frac{1}{2}x -\frac{1}{2}x =7-8<=>0x=-1[/tex] (no solution)
P/s: [tex]\frac{1}{2}x +8\neq 7+\frac{1}{2}x[/tex]
Ok done. Thank to me :>
2(5 - 8x) -13 = 9(1 - x) -12
Answers
2 (5 - 8x) - 13 = 9 (1 - x) - 12
10 - 16x - 13 = 9 - 9x - 12
10 - 13 - 16x = 9 - 12 - 9x
- 3 - 16x = - 3 - 9x
- 3 + 3 = - 9x + 16x
0 = 7x
0/7 = x
0 = x
_____
Hope it helps ⚜
Answer:
x = 0Step-by-step explanation:
2(5 - 8x) - 13 = 9(1 - x) -12 => 10 - 16x - 13 = 9 - 9x - 12=> -3 - 16x = -3 - 9x=> 0 = 16x - 9x=> 0 = 7x => x = 0Conclusion:
Therefore, the answer is 'x = 0'
!! Hoped this helped !!
[tex]BrainiacUser1357[/tex]
Please help I’ll love u forever
Answers
Answer:
3. non linear
4. weak
Step-by-step explanation:
3. it doesn't go in a line
4. it's a weak association.
Ernie played 35 soccer games this season. He won 28 games. Enter the
percentage of games Ernie won.
Answers
= 0.8
Then multiply the decimal with 100
0.8 x 100
= 80
There fore the answer is 80%
Hope this helps!
Brainliest is much appreciated!
Answer:
I think it;s 9.8
Step-by-step explanation:
You divide 35 and 28 i think
The length of a rectangular hall exceeds its breadth by 7 m. If the breadth is decreased by 1 m and the length increased by 2 m, the area remains the same. Find the length and breadth of the hall.
Answers
Answer:
Step-by-step explanation:
Let the length be :x+7
Let the breadth be:x
After addition and subtraction
Length:x+7+2=x+9
Breadth:x-1
A.T.Q
x(x+7) = (x+9)(x-1)
x²+7x = x(x-1)+9(x-1)
x²+7x = x²-x+9x-9
x²+7x-x²+8x = 9
8x-7x = 9
So, Breadth: 9m
So, Length :16m
combine k/4 and 5k
pls pls pls pls
Answers
[tex]\dfrac k4 + 5k = \dfrac{k + 20k}4 = \dfrac{21k}4[/tex]
What is Decrease 20g by 10% please?
Answers
Answer:
18
Step-by-step explanation:
Pls due tmr pls pls fast I need it like rn
Answers
Answer:
Step-by-step explanation:
50 of 100
= 50%
120 of 1
= 1.2%
One triangle weighs how much
Answers
Answer:
13
Step-by-step explanation:
Please help with this
Answers
Answer:
the value of ST is 2 of its x is 2
(THE ULTIMATE QUESTION)solve one step equation (will also give Brainliest)
1. 3x = -18
2.x/4 = 16
3.-9x = 45
4.x + 8 = -10
5.-3x = -9
6.x/-2 = -3
Answers
Answer:
1 = --6
2 x=64
3 x= --5
4 x= --18
5 x=3
6 x=6
Step-by-step explanation:
GIMME BRANlIEST PLZZZ
MAS CARDS
5. Determine if the equation has one solution, no solution, or infinite
solutions.
-2(x – 3) + 5 = -6(x + 1) + 4x
One solution
No solution
Infinite solutions
Answers
-2(x-3)+5=-6(x+1)+4x
Multiply to get rid of the parentheses
-2 x X = -2x
-2x-3=6
6 x X = 6x
6x1=6
New equation = -2x+6+5=-6x+6+4x
Add same
6+5=11
-6x + 4x = -2x
New equation = -2x+11=-2x+6
That just doesn’t work
Answer:
No solution
Step-by-step explanation:
-2(x-3)+5= -6(x+1)+4x
First Distribute:
-2x+6+5= -6x-6+4x
Then transfer all variables to one side and the rest to other side:*when transfer u turn to opposite number for example: -6x will transfer to 6x
6+5+6= -6x+4x+2x
Last solve
17=0
no solution