Sammie cuts a piece of ribbon that is 2 feet long.
She needs only 18 inches of ribbon.
How much extra ribbon did she cut?

Answer:

It's attached you may see it!!

Answer:

see attachments

Step-by-step explanation:

Given equations:

\(\begin{cases}5x + 7y = 50\\7x + 5y = 46\end{cases}\)

To plot the graphs of the given equations:

Equation 1

\(\implies 5x + 7y = 50\)

\(\implies 7y = -5x + 50\)

\(\implies y = -\dfrac{5}{7}x+\dfrac{50}{7}\)

\(x=-4 \implies y = -\dfrac{5}{7}(-4)+\dfrac{50}{7}=10 \implies (-4,10)\)

\(x=3 \implies y = -\dfrac{5}{7}(3)+\dfrac{50}{7}=5 \implies (3,5)\)

Plot the points (-4, 10) and (3, 5) then draw a straight line through them (see attachment 1).

Equation 2

\(\implies 7x+5y=46\)

\(\implies 5y=-7x+46\)

\(\implies y=-\dfrac{7}{5}x+\dfrac{46}{5}\)

\(x=3 \implies y=-\dfrac{7}{5}(3)+\dfrac{46}{5}=5 \implies (3,5)\)

\(x=8 \implies y=-\dfrac{7}{5}(8)+\dfrac{46}{5}=-2 \implies (8,-2)\)

Plot the points (3, 5) and (8, -2) then draw a straight line through them (see attachment 2).

Learn more about linear graphs here:

https://brainly.com/question/27962658

There are 3feet in one yard.

Let B = number of feet

Let Y = number of yards

B = 3Y

Answer:

the answer is -50

hope this helps <3

Answer:

y = 20, x = 54

Step-by-step explanation:

2x - 4y = 28

5x + 6y = -10

10x - 20y = 140

10x + 12y = -20

8y = 160

y = 20

2x - 4(20) = 28

2x - 80 = 28

2x = 108

x = 54

Answer:

X=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

15+x=20

or, x=20-15

or, x=5

Answer:

-291

Step-by-step explanation:

4+(-5)(n-1)=4-5*59=4-295=291

Answer:

The answer is 15.9 centimeters. If you work backward with the formula 2pir = circumphrence, you get diameter *pi = 50. To find diameter, you divide 50 by pi and the answer is 15.9 centimeters.

Step-by-step explanation:

The diameter to the nearest tenth of a centimeter is mathematically given as

31.8cm, option D

Question Parameters:

Circle Q has a circumference of approximately 50 centimeters.

Generally, the equation for the circumference   is mathematically given as

C=2\pir

Therefore

r=C/ \pi

r=50/3.14

r=15.9cm

Therefore,

d=2r

d=2*15.9

d=31.847

In conclusion, the diameter to the nearest tenth of a centimeter. is

31.8cm

Read more about  Arithmetic

https://brainly.com/question/22568180

Answer:

40 students

Step-by-step explanation:

you have to minus 9 because of the cars then you have 320 divide 8 and you get 40.

Answer: The mass of the remaining element = 1.1 grams .

Step-by-step explanation:

Exponential equation of decay: \(y=A(1-r)^x\) ...(i), where A = intial value , r= rate of decay in decimal , x= time.

As per given :

Initial mass : A= 140 grams

Rate of decay : r= 21.6% per minute= 0.216 per minute.

x= 20  minutes

Substitute values in (i) , we get

\(y=140(1-0.216)^20\\\\=140(0.784)^2^0=1.077579422\)

Hence, the mass of the remaining element = 1.1 grams .

Answer:

hello

3.32 > 3.18

Step-by-step explanation:

Given the expression:

The expression shows the distribution property of addition

So, 6 ( 3 +4 ) = 6 * 7 = 42

Which will give the same result if we distribute 6 over 3 and 4

So, 6 (3) + 6(4) = 18 + 24 =42

Show the following diagram:

As shown, the rectangle on the left side has 3 rows + 4 rows

Which will give us 7 rows when divided to 6 column will give 42 squares

While the rectangles on the right side. we have divided it to 3 rows and 4 rows, each one of them is divided to 6 column which will give us 18 squares and 24 squares the sum of them will give us 42 squares

So, 6 ( 3 + 4 ) = 6(3) + 6 (4)

Answer:

To find the area of the six-sided composite figure, we can divide it into two smaller shapes: a rectangle and a triangle.

The rectangle has a length of 8 meters and a width of 18 meters, so its area is:

8 meters × 18 meters = 144 square meters

The triangle has a base of 18 meters and a height of 8 meters, so its area is:

(1/2) × 18 meters × 8 meters = 72 square meters

The total area of the six-sided composite figure is the sum of the areas of the rectangle and the triangle:

144 square meters + 72 square meters = 216 square meters

Therefore, the total area of the figure is 216 m².

Option (B) 216 m²

GIVEN

Vertical line on the left is labeled 10 meters. The base is labeled 18 meters. there is a small portion from the vertical line that is parallel to the base that is labeled 5 meters. this portion leads to two segments that come to a point, and from that point, there is a height of 2 meters labeled.

TO FIND

The area of the figure.

SOLUTION

The above problem can be simply solved as follows —

The composite figure is rectangle and 2 triangles.

Length of the Rectangle = 10 meters

Width of Rectangle = 18 meters 

Area of Rectangle = Length × Breath 

                               = 10 × 18 

                               = 180 meter²

Base of Triangle = 18 meters

Height of Triangle = 2 meters 

Area of Triangle = (1/2) × base × height

                            = (1/2) × 18 × 2 

                            = (1/2) * 36

                            = 18 m²

Total number of triangles = 2

Total area of Triangles = Area of triangle * Number of Triangles

                                       = 18 * 2

                                       = 36 m²

Total area of the figure = 36 + 180 = 216 m²

Hence, The answer is 216 m².

Hope my answer helps you.

:)

Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss

You are reading an article in your school newspaper

Answer:

16 - x = -2

16 + 2 = x

x = 18

hope it helps!

The length of the movie screen at the local cinema is 37188552  feet.

Let's assume the width of the rectangle movie screen is represented by 'w' feet. According to the given information, the length of the screen is 303030 feet longer than the width. Therefore, the length can be expressed as 'w + 303030' feet.

The perimeter of a rectangle is given by the formula: 2(length + width). In this case, the perimeter of the movie screen is 148148148 feet. We can set up the equation as follows:

2(w + (w + 303030)) = 148148148.

Simplifying the equation, we have:

2(2w + 303030) = 148148148.

4w + 606060 = 148148148.

4w = 147542088.

Dividing both sides by 4, we get:

w = 36885522.

Therefore, the width of the screen is 36885522 feet. Since the length is 303030 feet longer than the width, we can calculate the length as:

Length = Width + 303030 = 36885522 + 303030 = 37188552 feet.

Hence, the length of the movie screen is 37188552  feet.

Learn more about rectangle here:

https://brainly.com/question/15019502

#SPJ11

Answer:

55.5 cm

Step-by-step explanation:

\(h=2*\frac{A}{a+b} \\\\h=2*\frac{5550}{115+85} \\\\h=2*\frac{5550}{200} \\\\h=2*\frac{111}{4} \\\\h=55.5\)

Answer:

73.6%

Explanation: 38 is the old value and 66 is the new value. In this case we have a positive change of 73.68... percent because the new value is greater than the old value.

Answer:

The answer is 493.3

Step-by-step explanation:

6.72 x 12.7 x 5.78 = 493.28872

And 493.28872 rounded to the nearest tenth is 493.3 because the original number in the tenth place is 2 and then the digit before that is 8 which in this case is your rounding digit. Round up If the number is greater than 5 and round down if its less than 5. In this case its greater than 5 to that leaves you with 28 so now you have 493.28, 28 rounded to the nearest tenth is 30 and just take the 0 away, as if it didn't exist.

The surface area of the prism is 395 square centimeter.

Volume is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write volume as -

V = ∫∫∫ F(x, y, z) dx dy dz

Given is to fins the surface area of the prism given below.

The given prism is a cuboid. We can write the surface area of the cuboid as -

V = 2(LB + BH + LH)

V = 2(12.7 x 5.78 + 5.78 x 6.72 + 12.7  x 6.72)

V = 2(73.4 + 38.8 + 85.344)

V = 395 square centimeter

Therefore, the surface area of the prism is 395 square centimeter.

To solve more questions on Prisms, visit the link-

https://brainly.com/question/22147194

#SPJ2

Substituting the given values, the expression 4r + q evaluates to:

4(3) + 1 =12 + 1

= 13.

To evaluate the expression 4r + q, substitute the given values of r=3 and q=1 into the expression.

Step 1: Substitute the value of r:

4(3) + q

Step 2: Simplify the multiplication:

12 + q

Step 3: Substitute the value of q:

12 + 1

Step 4: Perform the addition:

13

Therefore, the expression 4r + q evaluates to 13 when r=3 and q=1.

Hence, the given expression is evaluated by substituting the values of r and q into the expression and simplifying the resulting expression. The final result is 13.

To know more about algebraic expressions, visit:

https://brainly.com/question/29160944

#SPJ11

Answer:

1/3

Step-by-step explanation:

Answer: l +w+ hypotenuse or 204

Step-by-step explanation: so the farmer walks the length then the width of the field then the diagonal which we don't know using pythagorean to find that last side then add the values 51^2+68^2=c^2 and 51+68+85= 204

Answer:

(1) Pr(none)= .71

(2) Pr(exactly 2)= .0154

(3) Pr(at least 1)= .29

(4) Pr(exactly 1)= .271

(5) Pr(exactly 3)= .000275

(6) Pr(at most 2)= .99

Bolded answers might be wrong, I am a bit unsure on those ones

Answer:

what are you asking?

Step-by-step explanation:

Answer:

4.7

Step-by-step explanation:

Given equation y=4.7x

constants of proportionality = y/x

so, y/x = 4.7

therefore, answer is 4.7

Answer:

y=2x+3

Step-by-step explanation:the rise over run is 2/1 indicating that the slope is 2. the line also passes through 3 which means the y intercept is 3.  

To calculate the probability of selecting a boy or a red-haired person as a homeroom representative to student council, we need to find the probability of each event and then use the formula P(A or B) = P(A) + P(B) - P(A and B).

There are 31 students in total (16 girls + 15 boys). The probability of selecting a boy is 15/31.

There are 5 red-haired students (3 girls + 2 boys). The probability of selecting a red-haired person is 5/31.

However, we need to account for the overlap between boys and red-haired students. There are 2 red-haired boys, so the probability of selecting a red-haired boy is 2/31.

Now we can use the formula: P(boy or red-haired) = P(boy) + P(red-haired) - P(boy and red-haired) = (15/31) + (5/31) - (2/31) = 18/31.

So, the probability of selecting a boy or a red-haired person as a homeroom representative to student council is 18/31.

Learn more about probability:

https://brainly.com/question/24756209

#SPJ11

Answer:

j

Step-by-step explanation: