A 1kg book is lifted 2m. How much work was done?
Answer:
work= force ×distance
force= mass × acceleration due to gravity
mass= 1kg
acceleration=10
Force=1×10=10N
Work=10×2=20joules
The work done is 20 joule.
What is Work done?
It should be converted to energy in order to move an object. Energy can be transferred by the use of force. Work done refers to the amount of energy used by a force to move an object.
Given:
mass, m= 1 Kg
So, force = mg = 1 x 10 = 10 N
and, displacement = 2m
Now, work done= force x displacement
= 10 x 2
= 20 Joules.
Hence, the work done is 20 joule.
Learn more about work done here:
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Jada received a gift of $180. In the first week, she spent a third of the gift money. She continues spending a
third of what is left each week thereafter. Which equation best represents the amount of gift money g, in
dollars, she has after t weeks? Be prepared to explain your reasoning.
Answer:
180 minus 60 equals 120
Step-by-step explanation:
1/3 of 180 equals 60 so you would take 60 out of 180 to get 120 and 120 would be the amount that she spent the rest of the weeks
Roberto earns $6.50 per hour. He worked 32 hours at the regular rate, 8 hours at a time and a half, and 8 at double time. How much did he earn?
Answer $390
Step-by-step explanation:
Answer:
$390
Step-by-step explanation:
First Roberto works 32 hours at 6.50 per hour. At that time, he earn 32*6.5 = $208. Then he works 8 hours at a time and a half. This means that his pay rate is 50% more, or 6.5*1.5 = $9.75 per hour. Since he worked 8 hours at this pay rate, he earns 8*9.75 = $78. And then he works 8 hours double time. This means his pay rate was doubled during that duration. 6.5*2 = 13, 13*8 = $104.
Total: 208 + 78 + 104 = $390
Factor the expression: 12x + 16
Answer:
12x+16
~Grouping~
12+16
4(3+4)
~Solution~
4(3+4)
Step-by-step explanation:
Hope that helps!!! :)
Answer:
Step-by-step explanation:
All you can do with this is take out a common factor of 4
12x / 4 = 3x
16 / 4 = 4
So the answer is
4 (3x + 4)
PLS, HELP is it A. B. C. D.
Answer:
May be c but I am not sure dear.
Use the graph and table to write the equation that describes the line graphed.
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 2, negative 1, 0, 1, 2. Column 2 is labeled y with entries 1, 2, 3, 4, 5.
The equation of the line
Please help me :(
Answer:
I believe it is x−y+3=0.
Step-by-step explanation:
y= mx + b
The equation of a line is written as [tex]\frac{y_{2-}{y_{1} } }{x_{2-}{x_{1} } }[/tex], so if you plug in the numbers from the first two rows on the grid you get, [tex]\frac{2-1}{-1--2}[/tex] = [tex]\frac{1}{1}[/tex] = 1
The y- intercept is [tex]b= y_{1}[/tex]-m·[tex]x_{1}[/tex], plug in the number and its, b=1-(1)·(-2)=3
Finally, the equation of the line can be written in the form y=mx+b.
y=x+3.
The equation of the line in the slope-intercept form is y=x+3.
The equation of the line in the point-slope form is y−1=1(x+2).
The general equation of the line is x−y+3=0.
Answer:
It’s D y=X+3
Step-by-step explanation:
Use Distributive Property to simplify the following expression: 10(m + 5)
Paul wants to buy a new skateboard. The regular price of the skateboard before a 15% discount and before 4% tax is $40. What is the amount of money Paul will need to buy the skateboard after the discount and including tax
HELP!!!! 100 POINTS FOR THESE QUESTIONS. CHECK PHOTO FOR QUESTIONS. GEOMETRY
1.How many inches are in a foot
2.The space between the finger and the thumb is 3 1/2 inches, convert this measurement to feet
3. The hand in the image is 15 inches in front of the camera. Convert this measurement to feet.
4. Write the ratio of distance from the camera to the hand to the space between the fingers. Use the measurements that were calculated in feet
5. According to Wikipedia, the tower that houses Big Ben is 315 feet in height. Write a ratio of the distance from the camera to the base of the tower to the height of the tower. *hint – introduce a variable on this step*
6. Setup a proportion to find the distance from the camera to the base of the tower
7. Solve the proportion from number 6.
Answer:
1=12 inches
2=42 inches
3= 315 feet
4= it looks like he’s less than 1/4th of a mile away from big ben
5=?
6=?
Step-by-step explanation:
thats all i could help with
entre 4 grupos de un colegio recolectaron 200kg de papel para reciclarlo.el primer grupo recogio 60 1/4 kg el segundo 13 1/5 y el tercero 45,93 kg cuanto recogio el cuarto grupo?
Answer:
segun yo es asi no confies mucho en mi
Step-by-step explanation:
200 kg total de papel
primer grupo= 60kg
segundo= 13kg
tercero= 45.93
cuarto= x
si sumamos el total recolectado por los tres primero grupos
60+13+45.93
esto nos da
118.93
si en total se recgio 200kg de basura y tenemos que los tres primeros grupos recogieron 118.93, entonces solo queda restar el total menos lo recolectado
200-188.93= cuarto grupo
cuarto grupo=81.07kg
(-3, -14) and (0, -9)
Answer: -26
Step-by-step explanation: hope this helps :)
Step 1: Give an example of an equation that has a variable on both sides. (YES YOU GET TO MAKE UP YOUR OWN EQUATION) Step 2: After you create your equation, explain with words how you would solve your equation. Make sure you explain each step and the properties you would use. Your answer should be in paragraph form. *
Answer:
3m = 3m
Step-by-step explanation:
Divide both sides by 3, and you get m = m
disappointing but this was all i could think of sorry
I would need you to tell me the answers to each question (3 questions)
Step-by-step explanation:
For no. 4
x = 180° - 98° - 50°
x = 32°
For no. 5
x = 180°- 67°-56°
x = 57°
For no. 6
x = 180° - 22° - 47°
x = 111°
Hope it will help :)❤
Which postulate proves the two
triangles are congruent
A. SAS
B. ASA
C. SSS
D. HL
Answer:
SSS
Step-by-step explanation:
please simplfy 7x + 6 + 3x – 2 – 5x
Answer:
5x+4
Step-by-step explanation:
Answer:
5x + 4
Step-by-step explanation:
7 + 3 - 5 = 10 - 5 = 5x
6 - 2 = 4
5x + 4
What are the zeros of f(x) = x2 - x - 30?
O A. x = 10 and x = -3
O B. x = 6 and x = -5
O C. x= -10 and x = 3
O D. x= -6 and x = 5
Answer:
B
Step-by-step explanation:
the x intercepts of this graph are -5 and 6
HELP ASAP!!!!!!!!
Find the cite of each variabile
tan = opp/adj
x = 13(tan 45)
x = 13
//
a² + b² = c²
13² + 13² = 338²
square root of 338 is not a rational number so turn into mixed radical.
//
[tex]x \: = 13[/tex]
[tex]y = 13 \sqrt{2} [/tex]
Ming's school is selling tickets to a play. On the first day of ticket sales the school sold 8 adult tickets and 1 student ticket for a total of $95. The school took in $71 on the second day by selling 2 adult tickets and 7 student tickets. Define two variables for this situation. Write a system of equations to represent this situation. What is the price each of one adult ticket and one student ticket?
Answer:
Your answer.
8x + y = 95.........(1)
2x + 7y = 71........... (2)
Y = 95-8x........ (3)
Put this value in eq 2
Then x = 11
Put x value in eq 3
Y = 7
Thank you. And give my answer as Brainlist answer. Follow me for more
Step-by-step explanation:
Help please! Thank youuuuuuuuu
Answer:
3 3/5 meters (B)
Step-by-step explanation:
Since this is perimeter, you must find the "outside".
The top side: 1/4 * 4 = 1
Left side: 1/5 * 4 = 4/5
Bottom: 1
Right side: 4/5
Add them up!
1 + 1 + 4/5 + 4/5
2 8/5
3 3/5
B!
gradient of line 6x+2y+9=0
Answer:
gradient = - 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c( m is the slope (gradient) and c the y- intercept )
Given
6x + 2y + 9 = 0 ( subtract 6x + 9 from both sides )
2y = - 6x - 9 ( divide the 3 terms by 2 )
y = - 3x - [tex]\frac{9}{2}[/tex] ← in slope- intercept form
with gradient m = - 3
If m+6 divided by 2 is 4 less than 4m. What is the value of m?
Answer:
Ok
Step-by-step explanation:
Factor ab + bc+ b² + ac.
A. (a + b)(b + c)
B. (a + c)(b + c)
C. b(a + b)(b + c)
Answer:
A. (a + b)(b + c)
Step-by-step explanation:
b( a + b ) + bc + ac
b( a + b ) + c ( b + a )
= (a + b)(b + c)
hope it helps!
Answer:
A
Step-by-step explanation:
a(b+c)+bc+bb
a(b+c)+b(c+b)
(b+c)(a+b)
randy needs to save 2550$ for a vacation. he has 6 months to save the money. how much money must he save each month?
Answer:
425
Step-by-step explanation:
2550/6=425
Answer:
425
Step-by-step explanation:
If the circumference of a circle is 62.8 feet what is the radius of the circle
Answer: r≈ 9.99ft
Using the formula
C=2 π r
Solving for r
r= C/2π = 62.8/2·π ≈9.99493ft
which equation has a solution x= -3
A) 2x - 7 = -1
B) 3x + 8 = 1
C) 1/2x + 8 = 10
D) 1/2(2x - 6) = -6
Answer:
D
Step-by-step explanation:
1/2 ( 2x - 6) = -6
1/2 = 0.5
0.5(2x-6) = -6
1x-3=-6
1x=-6+3
x=-3/1
x=-3
PLZZZZZ HELP ME!
It’s math btw
Answer:
1. 9/10
2. 15/16
4. 3/5
5. 3/5
Step-by-step explanation:
1. 7/10 + 2/10 = 9/10
2. 13/16 + 2/16 = 15/16
4. 7/15 + 2/15 = 9/15 = 3/5
5. 9/20 + 3/20 = 12/20 = 3/5
Answer: 1 r1 for second
Step-by-step explanation: 13/16+2/16=15/16 divide 15/16 gets 1 r1
Having some struggles with this:
Answer:
the 3rd one hope this helps
Step-by-step explanation:
HELPPPP I DONT KNOW THE ANSWER PLEASE HELP ME
Answer:
IM PRETTY POSITIVE ITS B
PLS MARK BRAINLIEST
SORRY IF IM WRONG :P
Step-by-step explanation:
3 1183 long division
Madison is starting her own sewing business. Madison has calculated that she needs to earn $840 per week to support her family. If she knows she will only be able to work 75 hours per week, what is the minimum amount of dollars per hour that she will need to charge her customers?
Answer:
$11.20 per hour
Explanation:
x = dollars per hour
75x = 840
x = 11.20
