Using a pulley system, a crew does 7,500 J of work to load a box that requires 4,500 J of work. What is the efficiency of the pulley system?

Answer:

4 3/5

Step-by-step explanation:

Answer:

How many hours per week do you play football?

Step-by-step explanation:

Answer:

the unit rate is 1.32 per bag

Step-by-step explanation:

divide 3.96 by 3

Answer:

The unit rate or the cost of one bag of Doritos is 1.32

Step-by-step explanation:

3.96 ÷ 3 = 1.32

Answer:

B the anser is B

Step-by-step explanation:

you hafto to do it like B bc its the most comen sens one

Answer:

I thinks it's A

Step-by-step explanation:

1) 12:6×1=2

2) 12:4×1=3

3) 1+1+2+3+2=9

4) 12-9=3

The amount of pizza that is left over will be 1/4. Then the correct option is E.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

One pizza was cut into 12 pieces. Eddie ate 1/12 and Melanie ate 1/12. Mom ate 1/6 and dad ate 1/4. Albert ate 1/6 of the pizza.

Then the amount of pizza that leftover will be

⇒ 1 - (1/12) - (1/12) - (1/6) - (1/4) - (1/6)

⇒ 1 - (1/12) - (1/12) - (2/12) - (3/12) - (2/12)

⇒ 1 - [(1 + 1 + 2 + 3 + 2) / 12]

⇒ 12 / 12 - 9 / 12

⇒ (12 - 9) / 12

⇒ 3 / 12

⇒ 1/4

The amount of pizza that is left over will be 1/4. Then the correct option is E.

Your question was incomplete, but the complete question was given below.

One pizza was cut into 12 pieces. Eddie ate 1/12 and Melanie ate 1/12. Mom ate 1/6 and dad ate 1/4. Albert ate 1/6 of the pizza. How much, if any, was left over?

A) 2/6

B) 2/3

C) 4/6

D) 1/2

E) 1/4

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Answer:

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

Answer:

32

Step-by-step explanation

0.5 x 16=8

8x2=16

0.5x16=8

8x2=16

16+16=32

Answer:

18x + 6 = 2( 9x + 3 )

18x + 6 = 3( 6x + 2 )

18x + 6 = 6( 3x + 1 )

Step-by-step explanation:

Answer:

1. 2(9x+3)

2. 3(6x+2)

3. 6(3x+1)

Step-by-step explanation:

Okay so in the first one there is a 2 outside of the parentheses which means we will multiply whatever is inside of the parentheses by 2.

9x*2=18x

3*2=6

18x+6=2(9x+6)

Okay so in the second one there is a 3 outside of the parentheses which means we will multiply whatever is onside of the parentheses by 3.

6x*3=18x

2*3=6

18x+6=3(6x+2)

Okay so in the third one there is a 6 outside of the parentheses which means we will multiply whatever is inside of the parentheses by 6.

3x*6=18x

1*6=6

18x+6=6(3x=1)

Answer:

6.2 cm

Step-by-step explanation:

V=4 /3πr^3

4 /3*π*6.2^3 = 998 cm cubed

Have a good day :)

Answer:

option 2: 112°

Step-by-step explanation:

IA = interior angle

IA1 + IA2 + IA3 = 180

IA1 = IA2

IA1 + IA1 +IA3 = 180

2IA1 + IA3 = 180

2(34)+ IA3 = 180

IA3 = 180 - 68

IA3 = 112°

Answer: Your answer is 1 and 3

Step-by-step explanation: congruent means same or identical and 1 and 3 are identical

Answer is 1 and 3

Step-by-step explanation I did da quiz and got it correct.

Answer:

6

Step-by-step explanation:

30 divided by 4= 7.5

so 24 divide by 4= 6

Brainliest????

Answer:

6

Step-by-step explanation:

Look at both trapezoids and you can find the relation between both

Line DC and GH are equal, those different measurements they have the same characteristics. Same with AB and FE

Divide GH by DZ and you get the scale that you can apply to find FE

30/7.5 = 4

So line FE is 4 times smaller than AB

24/4 = 6

Answer:

Problem:

Solve 3x−y=6;y=x−4

Steps:

I will try to solve your system of equations.

y=x−4;3x−y=6

Step: Solvey=x−4for y:

Step: Substitutex−4foryin3x−y=6:

3x−y=6

3x−(x−4)=6

2x+4=6(Simplify both sides of the equation)

2x+4+−4=6+−4(Add -4 to both sides)

2x=2

2x

2

=

2

2

(Divide both sides by 2)

x=1

Step: Substitute1forxiny=x−4:

y=x−4

y=1−4

y=−3(Simplify both sides of the equation)

Answer:

y=−3 and x=1

Step-by-step explanation:

Hope this helped you

Answer:

i think its C

Step-by-step explanation:

sorry if wrong ( can i have brainliest)

Answer:

16

Step-by-step explanation:

9+16 = 25   9+ 7 = 16

Answer:

its 25 - 7, so 18

My answer is better, much better than the other guy's he cant even math right

Step-by-step explanation:

1. solution,

length of rectangle A(l)=3.1units

breadth of rectangle A(b)=1units

now,

area of rectangle A=l×b

=3.1units×1units

=3.1 sq units

2.solution,

length of rectangle B(l)=3.1units

breadth of rectangle B (b)=0.4units

now,

area of rectangleB=l×b

=3.1units×0.4units

=1.24 sq units

3.solution,

length=3.1units

breadth=1.4units

area =lxb

=3.1units x 1.4units

=4.34units

Answer:

1) 3.1   2) 1.24  C) 4.34

Step-by-step explanation:

Area = l(w)

Area of rectangle A:

3.1 * 1 = 3.1

Area of rectangle B:

0.4 * 3.1 = 1.24

Both rectangles put together:

First, let's add 1 to 0.4... 1.4

1.4 * 3.1 = 4.34

I really, really, really hope I helped you. Good Luck :D

Answer:

Length: 19 feet

Width: 10 feet

Area: 190 feet

Step-by-step explanation:

This is a question about ratio.

Length: let  be the actual length.

Width: let  be the actual width.

Area: A = xy

Answer:

D

Step-by-step explanation:

When you divide a negative by a negative you get a positive

Answer:

-27

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

1 cm^3 is equal to 1 mL so the answer would probably be 210 mL

Answer:210 mL

Step-by-step explanation:

Answer:

no clue just wanted

Step-by-step explanation:

free stuff

Answer:

3200π mm³

Step-by-step explanation:

The volume (V) of the cylindrical tower is calculated as

V = πr²h ( r is the radius and h the height ) , then

V = π × 8² × 50 = π × 64 × 50 = 3200π mm³

Answer: A

Step-by-step explanation:

The distance traveled by the skier traveled in 2 1/2 minutes is A = 2,700 m

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the value of A is

Let the distance traveled by the skier in 4 seconds = 72 m

And , let the distance traveled by the skier in 2 1/2 minutes = A

where 2 1/2 minutes = 150 seconds

Now , the proportion is

A / 150 = 72 / 4

Multiply by 150 on both sides , we get

A = ( 150 x 72 ) / 4

On simplifying , we get

A = 2,700 meters

Therefore , the value of A is 2,700 meters

Hence , the distance is 2,700 m

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Answer:

They would both work

Step-by-step explanation:

All of the possible outcomes would be each variable multiplied together, and in this case it would be 4 clothes times 3 colors. This would be 12 outcomes.

Answer:

Both

Step-by-step explanation:

On the side and top of diagram A, you can see there are 4 options for the types of clothing and 3 options for the color, and the diagram shows all the possible combinations for that. This means option A is right.

On the side and top of diagram B, you are given 4 different options for clothing and 3 for the color. This chart shows all the possible combinations as well, meaning that option B is right too.

On top of this, you can also notice that both diagrams A and B have the same labels, just moved around.

Answer.    1: 6x3x3 = 54.  

2:6 x 4 = 24       11x 4 =44     44 + 24 =68

Step-by-step explanation: ur welcome

Answer:

Step-by-step explanation:

1. equivalent bc 16b+7a-c = 7a+(-c)+16 (+*-) =-

2.not equivalent

3. simpilify:

4x+2+5y

4x+2+5y

equivalent