A rectangle has a perimeter of 80. if the length is four more than twice the width, what is the length of the rectangle ​

Answers

Answer 1

Answer:

28

Step-by-step explanation:

l = length

w = width

p = perimeter

w = w

l + l + w + w = p (adding all the rectangle's sides together gets us our perimeter)

l = 2w + 4 (four more than twice the width)

Substitute 2w + 4 for 'l' in the original equation

(2w + 4) + (2w + 4) + w + w = 80

Solve equation normally:

6w + 8 = 80

6w = 72

w = 72/6 = 12

(w = 12)

Length = 2w + 4

Substitute 12 for 'w':

2(12) + 4 = l

24 + 4 = l

28 = l

The length is 28


Related Questions

What are the real and imaginary parts of the complex number?

−7+8i



Enter your answers in the boxes.

Answers

Answer: The real part is -7, the imaginary part is 8i

Step-by-step explanation:

Answer: The Real Part: -7

               The imaginary Part: 8i

Step-by-step explanation:

Keiko runs 6 miles in 55 minutes. At the same rate, how many miles would she run in 44 minutes?​

Answers

Answer:

4.8 miles

Step-by-step explanation:

Set up a ratio, Kelvin.

 

6/55 = x/44

 

55x = 6(44)

 

55x = 264

 

x = 264/55 = 4.8 miles

Can anyone help me? Worth 10 points!!!

Answers

Answer:

33

Step-by-step explanation:

Fabric for 1 pillow case: 1.5 ÷ 3 = 0.5Amount of pillow cases made with 16.5 yards of fabric: 16.5 ÷ 0.5 = 33

I hope this helps!

Answer:

33 pillowcases

Step-by-step explanation:

16.5 yard of fabric/ 1.5 yards of fabric = 11 yards of fabric

Multiply 11 (yards of fabric) by 3 (# of pillowcases) to get the number of pillowcases you can make with 16.5 yards of fabric.

11 * 3 = 3 pillowcases

Find the slope of the line through (6, -7) and (4, -8)

Answers

Answer:

1/2

Step-by-step explanation:

Y2-y1

________

X2-x1

-7 - (-8) = 1

6-4=2

Slope is 1/2

The slope of the line through (6, -7) and (4, -8)

What is the slope?

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

where (x₁, y₁) and (x₂, y₂) are the two points that you are trying to find the slope between.

Given;

Two points; (6, -7) and (4, -8)

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

m=(-8-(-7))/(4-6)

m=(-1)/-2

m=1/2

Therefore, the slope between the two given points will be1/2

Learn more about slope here:

https://brainly.com/question/2503591

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Brayden just lit a new candle and then let it burn all the way down to nothing. The
candle burned at a rate of 0.75 inches per hour and its initial length was 6 inches.
Write an equation for L, in terms of t, representing the length of the candle
remaining unburned, in inches, t hours after the candle was lit.

Answers

Answer:

L = -0.75t + 6

Step-by-step explanation:

L = length (this is what equation you are looking to solve for

-0.75t because the candle burns at 0.75 in per hour so the value decreases, hence the (-)

+6 because the candle has a positive value of 6 inches to begin with

The standard form of what you are writing is called slope intercept form y = mx + b, learn it because it is very important for future math.

The equation of the candle remaining unburned at any given time is       L(t) = 6 - 0.75t.

What is a function ?

A function is a set of values of the dependent variable for specified independent variable.

According to the given question Brayden just lit a new candle and then let it burn all the way down to nothing.

The candle burned at a rate of 0.75 inches per hour and its initial length was 6 inches we have to write an equation for L in terms of t where t represents time in hours and L(t) represents length of the candle remain unburned.

∴ L(t) = 6 - 0.75t.

At t = 0 the length of the unburned candle L(t) will be 6 inches and at t = 8 L(t) will be 0,So the candle can burn for 8 hours.

learn more about function here :

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Which expression uses the associative property to make it
easier to evaluate 6(1/3•7/5)
O A. (6.1/3)7/5
O B. (6•5/7)1/3
O C. 6(7/5•1/3)
OD 3(1/6•7/5)

Answers

Answer:

A

Step-by-step explanation:

Here, we want to select which of the expressions correctly use the associative property

The associative property deals with rearrangement

So for (a + b) + c

we can have (a + c) + b

In the case of this question, the associate property is the one that makes the evaluation easier

Thus;

we need to bring 1/3 and 6 together since 3 is a factor of 6

We have;

(6•1/3)7/5

Which equation is written in slope-intercept form?
O y=3x-2
x=žy+8
2x+5y = 12
O 3y=8x-5
please help

Answers

Answer:

y=3x-2

Step-by-step explanation:

the slope intercept form formula is

y=mx+b

Plsase help me with this question ​

Answers

I can’t see the picture

A staircase has an angle of elevation of 28 degrees and covers a total distance of 17 feet. To the nearest foot, what is the vertical height h covered by the staircase?

Answers

Answer:

..

Step-by-step explanation:

can someone please help me with this ​

Answers

Answer:

m<B=74°

Step-by-step explanation:

3x-23+2x-12=180

5x-35=180

5x=180+35

5x=215

x=215÷5

x=43

m<B=2x-12=2(43)-12=86-12=74

answer:

b= 10x i pretty sure

Step-by-step explanation:

a car decelerated from zero 40 mph to 0 mph what is the deceleration of thecar?

Answers

Answer:

40

Step-by-step explanation:

Deceleration means how much did it go down? It makes sense that 40 is correct! Let me know if I'm wrong.

Im trying to plot a slope function on a graph ​

Answers

Answer:

Graphing from slope

Step-by-step explanation:

To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

27 is 25% of __? plz helpppp me Thia is worth all my brainly points

Answers

Answer:

27 is 25% of 108.

Step-by-step explanation:

A question like this is quite easy. You can multiply 27 by 4 to get 108.

That's the answer, hope it helps

Translate each sentence to a equation

1. Six more than the quotient of a number
and 6 is -3.

2. Five more than twice a number is 27

3. Ten less than the quotient of a number and 2 is 5

Answers

Answer: (below)

Step-by-step explanation:

1) n/6 + 6 = -3

2) 2n + 5 = 27

3) n/2 - 10 = 5

Simplify 9 − (−4).
please help quickly

Answers

The Simplified answer is 13

a)
Isaac is purchasing two pairs of shoes-one pair for $37.00 and the second
pair for $42.00. The state sales tax applied to Isaac's bill is 7%. How much is Isaac's
total bill? Show your work. (2 points)
The answer is 84.53

Answers

Add both pair of shoes together. Then take that total and multiply by7% or.07

I RLLY NEED HELP BC THIS WAS DUE ALREADY!!! Answer ASAP thank you!

Answers

Answer:

10,560 yards

Step-by-step explanation:

5280 plus 5280 equals 10,560

Oof I’m failing as well girly

Please help ASAP!!!! Due in 5

Answers

Answer:Y=2

Step-by-step explanation:

Answer:

y =-1

Step-by-step explanation:

what is the approximate volume of the cone? use 3.14 for p? help immediately

Answers

Answer:

V=157

Step-by-step explanation:

Formula-

V=π[tex]r^{2}[/tex][tex]\frac{h}{3}[/tex]

1.) Place height and radius in the formula.

V=π[tex]5^{2}[/tex][tex]\frac{6}{3}[/tex]

2.) Now all you have to do is simplify.

V=3.14 x 25 x 2

3.) Now solve.

V=157.07963

Answer:

I say 157 cubic centimeters

Step-by-step explanation:

What is the image of (3,-6) after a dilation by a scale factor of 4 centered at the origin?

Answers

Answer:

7,-10

Step-by-step explanation:

Given m<12= 121 and m<6= 75, find the measure of each missing angle.

Answers

Answer/Step-by-step explanation:

Given:

m<12 = 121°

m<6 = 75°

a. m<1 = m<6 (vertical angles)

m<1 = 75° (substitution)

b. m<12 = m<1 + m2 (alternate exterior angles)

121° = 75° + m<2 (substitution)

121° - 75° = m<2 (subtraction property of equality)

46° = m<2

m<2 = 46°

c. m<1 + m<2 + m<3 = 180° (angles on a straight line)

75° + 46° + m<3 = 180° (substitution)

121° + m<3 = 180°

m<3 = 180° - 121° (subtraction property of equality)

m<3 = 59°

d. m<4 = m<3 (vertical angles)

m<4 = 59° (substitution)

e. m<5 + m<4 + m<6 = 180° (angles on a straight line)

m<5 + 59° + 75° = 180° (substitution)

m<5 + 134° = 180°

m<5 = 180° - 134° (Subtraction property of equality)

m<5 = 46°

f. m<7 = m<12 (vertical angles)

m<7 = 121° (substitution)

g. m<8 = m<4 (vertical angles)

m<8 = 59° (substitution)

h. m<9 = m<6 (Alternate Interior Angles)

m<9 = 75° (substitution)

i. m<10 + m<9 = 180° (Linear Pair)

m<10 + 75° = 180° (substitution)

m<10 = 180° - 75° (Subtraction property of equality)

m<10 = 105°

j. m<11 = m<8 (vertical angles)

m<11 = 59° (substitution)

k. m<13 = m<10 (vertical angles)

m<13 = 105° (substitution)

l. m<14 = m<9 (vertical angles)

m<14 = 75° (substitution)

Henry is following the recipe to make a cake. He has 95 cups of flour. How many cakes can Henry make

Answers

Answer

31

Step-by-step explanation:

3 cups in a cake you have 95

95÷3=31 hole cups

Guys someone please help with this if you're good at math

Answers

Your answer would be
y = -1/5x + 6

The GCF of two whole numbers is the ________.

Answers

greatest number that divides both numbers

Sonya made a resolution to walk 2.5 kilometers a day. On Tuesday she walked 4 times around the running track at the local high school (each lap is 0.4 kilometers.) How many additional kilometers does Sonya need to walk? (HINT: this is a multi-step problem with 2 operations...)

Answers

Answer:

0.9km

Step-by-step explanation:

Given that:

Sonya's resolution = walk 2.5 km daily

Total distance walked on Tuesday = 4 times around a running track

1 lap = 0.4 km

Hence, total distance by walking 4 times around track :

0.4km * 4 = 1.6km

Additional kilometers Sonya needs to walk:

2.5 - 1.6 = 0.9 km

Town M is 282 feet below sea level. Town R is 679 feet above sea level. How much higher, in feet, is Town R than Town M?​

Answers

Answer:

397 feet

Step-by-step explanation:

All you have to do is subtract the feet of Town R from Town M. The equation would look like this.

679 - 282 =397

So Town R is 397 feet higher than Town M.

Hope that helps and have a great day!

is an ice cube melting into water a chemical change?

Answers

Answer:

No

Step-by-step explanation:

When an Ice Cube melts into water it is a physical change not a chemical change because no chemicals were used.

Hope this Helps!!! :)

Let me know if I should change anything or if it was helpful in the comments!!!

Help me pls I am struggling In everything

Answers

Answer:

The answers are A, B, C, F

help, please. will give brainliest.

Answers

Answer:

x =11

Step-by-step explanation:

XWY + YXZ = XWZ

5x+5  + 2x+8 = 90

Combine like terms

7x+ 13 = 90

Subtract 13 from each side

7x= 90-13

7x = 77

Divide by 7

7x/7 = 77/7

x = 11

Fredrick manages a band and sings lead vocals. The band charges $700 per concert. Fredrick receives $175 of that money, and he shares the rest equally among the other 5 members of the band. How much money does each of the 5 band members receive per concert?
A. $105
B. $112
C. $175
D. $525

Answers

Answer: the answer would be A 105

Step-by-step explanation:

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