1.) The length of a rectangle is 4 cm longer than the width. The
perimeter is 80 cm. Find the length and width. Write a system and
use substitution to solve.

Answers

Answer 1

Step-by-step explanation:

if a rectangle has 4 sides and there are two lengths and two widths

then we could split 80 by 2 and minus 4 from the length and then split that into two.

then your answer would be  and 36 and 44

and the total answer would be half of each so the L=22 and L=22

and the W=18 and W= 18

sorry if this is wrong it least i tried :9


Related Questions

polly knit a total of 45 centimeters of scarf over 5 nights. how many nights. how many nights will polly have to spend knitting in order to knit a total of 63 centimeters of scarf​

Answers

Answer:

Your answer will be 567

Step-by-step explanation:

5 / 45 = 9 x 63 = 567

I hope this helps

Have a nice day/night

Mark brainiest, please

:)

What is the SUM of the interior angle of a 22-gon? Use the formula below.
S = (n -2) 180

Answers

Answer:

3,600

Step-by-step explanation:

(22 - 2) x 180

20 x 180

3,600

5x+4 = 3x−2 solve for brainlest value of x

Answers

Answer:

x= -3

Step-by-step explanation:

Answer:

x = -3 hope this help  

Please help ASAP please

Answers

Answer:

1,-5

3,1

0,0

-2,-3

Step-by-step explanation

im not sure any of this is correct but i tried my hardest

answer for this please

Answers

Answer:

An event with a probability of zero [P(E) = 0] will never occur (an impossible event). An event with a probability of one [P(E) = 1] means the event must occur (a certain event).

Hope it helps!!

please help and show work​

Answers

9514 1404 393

Answer:

  8) ΔCAB ~ ΔFDE; SSS

  9) ΔMNQ ~ ΔPNO; SAS

  10) ΔDBE ~ ΔABC; SAS

Step-by-step explanation:

8) The side ratios, shortest to longest, are ...

  6 : 8 : 10 = 9 : 12 : 15 = 3 : 4 : 5

so are the same for both triangles. Triangles CAB and FDE are similar by SSS.

__

9) MN/NQ = PN/NO = 6/5 = 12/10. The vertical angles between these corresponding sides are congruent. Triangles MNQ and PNO are similar by SAS.

__

10)  BD/BA = BE/BC = 21/28 = 24/32 = 3/4. The shared angle between the corresponding sides is congruent to itself. Triangles DBE and ABC are similar by SAS.

what is 3y-6=5y+6 answer plz ​

Answers

La respuesta es menos seis en la foot deje como lo hize y=-6

Answer:

y = − 6

Step-by-step explanation:

Solve by substitution.
y = 2.3 - 11
-2 + y = -4
Solution:

Answers

Answer:

Number 1: -8.7. Number 2: -2

Step-by-step explanation:

To find the first one, subtract 11 from 2.3.

2.3-11= -8.7 , so that's the answer for the first one.

To find the answer to the second one, just do -4+-2=-2, so that's the answer for the second one.

22. Which of the following can be solved using the inequality 260 + 60x <
500? Select ALL that apply
Barbara has $499.99 in her bank account. Every week, she withdraws $60 for her

A. expenses. Without making any deposits, how many weeks, x, can she withdraw
this money if she wants to maintain a minimum balance of $2607
Joseph wants to save at least $510 to buy a new guitar. He has $260 and will

B. save $60 every month. How many months, x, will he need to save enough
money to buy the guitar?
c.

Erica is planning a holiday. The hotel costs $60 per day and the air ticket costs
$260. If she has less than $500, how many days, x, can she stay at the hotel?
Karen is sending a package that weighs a maximum of 260 ounces. If the

D. package already weighs 500 ounces, how many 60-ounce ornaments, x, can
Karen place in the package?

Answers

Answer:

C.

Step-by-step explanation:

I took the test!

Can someone plz help me with this and explain how to do this math problem

Answers

Answer:

greater

Step-by-step explanation:

the reason is because if you allow x to have a value that is less than 3,

[tex] \sqrt{x - 3} [/tex]

will produce a square root of a negative number, and the square root of a negative number requires the use of imaginary numbers, therefore limiting x to greater than or equal to 3 prevents this, also, consideration should be given to the fraction

[tex] \frac{3}{x + 2} [/tex]

if x has a value of -2 it causes the denominator of the fraction to be 0, the denominator should never be 0, by limiting x to greater than 3 to prevent the problem above you are already taking care of x not being able to be -2 since greater than 3 already excludes -2

25+c+b

Answer Choices:
A)41
B)32
C)40
D)37

Answers

Answer:

C

Step-by-step explanation:

Can someone please help and please make sure it’s right :)

Answers

From corresponding angles theorem, we can see the 2 angles are equal.

16x+13=18x-1

2x=14

x=7

Done!

Any questions just leave them in the comments and I will answer.

Answer:

Step-by-step explanation:

i think you do 34x + 12

bc it is a same side interior angle and i think that equals 180 and then you

34x+12=180

      -12  - 12

34x=       168

------          ------

34              34

----------------------

i.dk i think it is 5 bc you get 4.98 so you round the 8 and it makes it a 4.10 which is 5

If x= 1 and y = -1
Find:

Answers

Answer:

answer is 0

..................3rd option

Answer:

x=1,y=-1

x3+y3=(1)3+(-1)3=1-1=0

so, answer is (c) 0

What is the area of the triangle?
16
8
10
units2

Answers

Answer:

64 units2

Step-by-step explanation:

16 x 8 / 2 =

128 / 2 =

64

Hope that helps!

64, 1/2bh is the formula for the area of an triangle, so plugging it in it will be 1/2(16*8)=64

Can somebody please help me question Is if square ABCD were Rotated 90 clockwise about the origin to create square A’B’C’D what would the measure of angle B ‘ be A 270 ,B 180, C45,D90

Answers

Answer:

Step-by-step Here is the answer I just did it and answer is 90 degrees

Pls mark me brainlyis would like if yo do that :)

I got it wrong just for enjoy

if square ABCD were Rotated 90 clockwise about the origin to create square A’B’C’D. The measure of angle B  is: D. 90.

Measure of angle

Given

ABCD=90 Clockwise

Hence:

Rotation will not change the size and figure

Square ABCD≅ Square  A’B’C’D

m∠B=90°

So,

m∠B'=m∠B=90°

Therefore the correct option is D.

Learn more about measure of angle here:https://brainly.com/question/25716982

#SPJ6

i’ll give brainliest if you give a correct answer.

Answers

Answer: 32

Step-by-step explanation:

Hiiii!! Marie Hereeee!!

32 is the answer!!

32 is the answer because of the number from division of one number by another two.

Hope This Helps! Have A GREAT Day!

What’s the surface area of the right rectangular prism shown below pls pls pls help me

Answers

Answer:

46 unit^2

Step-by-step explanation:

Total surface area=2.5*4*2+2*2.5*2+2*4*2=46

14. The equation of the line that passes through the
points (-2,2) and (3, -3) is
1. x + y = 5
2.x-y=5
3. y - x = 5
4. y = x
5. y = -X

Answers

Answer:

5.   y = -x

Step-by-step explanation:

First, you need to find the slope of the line.

[tex]m = \frac{2 - (-3)}{-2 - 3} = \frac{5}{-5} = -1[/tex]

Now, using either point substitute into the point-slope form for a line:

[tex]y - y_{1} = m(x - x_{1} )[/tex]

Using (-2,2) for [tex](x_{1} , y_{1} )[/tex] we get y - 2 = -1(x +2)

y - 2 = -x - 2

y = -x

Answer 5 is the correct answer

A grocer buys x kg of potatoes at Birr 1.50 per kg and y kg of onions at Birr 2.25 per kg.How much money does he pay in Birr?

Answers

Answer:

a is the answer

Step-by-step explanation: i k n o w

(GIVING BRAINLIEST!!!)

A box contains 4 bags of sugar. The total mass of all 4 bags is 6 kg. What is the mass of each bag in grams?

show your work

Answers

Answer:

each bag weights 1,500 grams

Step-by-step explanation:

there are 1000 grams in a kilogram

6 times 1000 is 6000

6000 divided by 4 is 1500

Answer:

1.5 i think

Step-by-step explanation:

6/4

Write the standard equation for the circle center (–9, 6), r = 9

Answers

Answer:

Step-by-step explanation:

(x+9)² + (y-6)² = 9²

Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa .

-Abby walks at a speed of 8 feet per second.
-Melissa walks at a speed of 9 feet per second.

Abby had been walking for BLANK seconds when both students had walked exactly the same distance. (round to the nearest whole)
please help me

Answers

Answer:

270 seconds

Step-by-step explanation:

Melissa's time = x seconds

Abby's time = (x + 30) seconds

Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.

But, speed = [tex]\frac{distance}{time taken}[/tex]

For Abby,

8 = [tex]\frac{distance}{(x + 30)}[/tex]

distance = 8(x + 30) ................. 1

for Melissa,

9 = [tex]\frac{distance}{x}[/tex]

distance = 9x ............. 2

From equations 1 and 2, for the same distance;

8(x + 30) = 9x

8x + 240 = 9x

x = 240 seconds

Abby's time = (x + 30)

                    = (240 + 30)

                    = 270 seconds

So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.

The time taken is 270 seconds.

Given that,

Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa . Abby walks at a speed of 8 feet per second. Melissa walks at a speed of 9 feet per second.Here we assume Melissa time be x and Abby time be x + 30

Based on the above information, the calculation is as follows:

8(x + 30) = 9x

8x + 240 = 9x

x = 240

So Abby time should be

= 240 +  30

= 270

Learn more: brainly.com/question/17429689

Please help!!!!
a sweet snack and a salty snack. Here is a two-way table showing the number of adults
and children who made each choice of snack. Answer each question below using the
table.
sweet snack salty snack total
adult 57
88
145
child 77
31
108
total 134
119
253
134
1. How many total people chose sweet snacks?
people
145
adults
2. How many adults chose salty snacks?
3. What percentage of the people who attended the social were children?
Round your answer to the nearest tenth. Do NOT grid in the percent symbol.

Answers

Answer:

76

Step-by-step explanation:

khan x math

1) Um barbante tem 10,85 metros de comprimento. Se você dividir em 5 pedaços de mesmo comprimento, quantos centímetros terá cada pedaço? * 1 ponto (a) 2,17 cm (b) 217 cm (c) 21,7 cm (d) 0,217 cm

Answers

Answer:

(b) 217 cm

Step-by-step explanation:

The computation of the number of centimeters will each have is shown below:

= Length of the string ÷ number of pieces

= 10.85 meters ÷ 5

= 2.17 meters

= 217 centimeters

hence, the correct option is b.

plz help me step by step

Answers

Answer:

x = - 6    

Step-by-step explanation:

Equation

1/3 * (-9x +12) = 22                Multiply both sides by 3

Solution

3 * 1/3(-9x + 12) = 22*3

- 9x + 12 = 66                        Subtract 12 from both sides.

-9x = 66 - 12                         Combine

-9x = 54                                Divide by -9

x = 54/-9

x = - 6

What is the length of the y-component of the vector shown below?

Answers

Answer:

A

Step-by-step explanation:

y component=17 sin 81≈16.7907≈16.8

Find two numbers that have a sum of 10 and a product of 21

Answers

Answer:

3 and 7

Step-by-step explanation:

because 7 + 3= 10 and 7 x 3= 21

most likey your answers are x=3 and y=7 OR x=7 and y=3

-27<7x-13<8 Please help do not understand

Answers

Answer:

-2<x<3

Step-by-step explanation:

THE ANSWER IS: -2 < x < 3

add 13 to all sides
divide by 7 on all sides

write standard form a.) 0.0000918 b.) 12.002×10-³​

Answers

Answer:

A. 9.18 x [tex]10^{5}[/tex]

B.12002

Step-by-step explanation:

Solve the simultaneous equations by substitution
3y - 2x = -7
5x + 3y = 28

Answers

Answer:

(5, 1 )

Step-by-step explanation:

Given the 2 equations

3y - 2x = - 7 → (1)

5x + 3y = 28 → (2)

Rearrange (1) expressing 3y in terms of x by adding 2x to both sides

3y = - 7 + 2x

Substitute 3y = - 7 + 2x into (2)

5x - 7 + 2x = 28

7x - 7 = 28 ( add 7 to both sides )

7x = 35 ( divide both sides by 7 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (2)

5(5) + 3y = 28

25 + 3y = 28 ( subtract 25 from both sides )

3y = 3 ( divide both sides by 3 )

y = 1

solution is (5, 1 )

Answer:

-(3y-2x= -7)

3y+5x= 28

-3y+2x= 7

3y+5x= 28

7x=35

7x/7= 35/7

x=5

5(5)+3y= 28

25+3y=28

3y= 28-25

3y=3

3y/3=3/3

y= 1

3y-2x= -7

3(1) -2x= -7

3-2x= -7

-2x= -7-3

-2x= -10

-2x/-2=-10/-2

x= 5

chekin

5x+3y=28

5(5)+3(1)=28

25+3=28

28=28

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