The perimeter of a rectangle is 70cm. if its length is decreased by 5cm and its width is increased by 5cm, its area will increase by 50 cm^2. Find the length and the width of the original rectangle.

Answers

Answer 1

Answer:

l=25, w=10

Step-by-step explanation:

2(25)+2(10)=70

25*10=250

25-5=20

10+5=15

20*15=300

Answer 2

Answer:

width = 10

lenghth = 25

Step-by-step explanation:


Related Questions

What is the length of AB? 4 units 5 units 6 units 7 units

Answers

Answer:

the answer is 6 units

Step-by-step explanation:

find point A and point B and then just count the units over from

A to B and you will get AB is 6 units

Answer c

Step-by-step explanation: bc its 6 units

Which isa zero of the quadratic function f(x) = 4x + 24x + 11?
Ox=9.25
Ox=-5.5
Ox=0.5
Ox=3.25

Answers

Answer:

b

Step-by-step explanation:

just took the test edg 22

Option B is correct, -5.5 is the zero of the quadratic function f(x) = 4x + 24x + 11

What is quadratic equation?

A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .

The given quadratic function is f(x) = 4x²+24x+11

We have to find the zero of the function.

Let us use the quadratic formula to find the zero.

a=4, b=24 and c=11

Let us plug in these values in quadratic formula

x=- 24±√24²-4(4)(11)/8

=-24±√576-176/8

=-24±√400/8

=-24±20/8

=4(-6±5)/8

=(-6+5)/2  or -6-5/2

=-1/2 or -11/2

=-0.5  or -5.5

Hence, Option B is correct, -5.5 is the zero of the quadratic function f(x) = 4x + 24x + 11

To learn more on Quadratic equation click:

https://brainly.com/question/17177510

#SPJ7

Jada had some dimes and quarters that had a total value of $12.50. The relationship between the number of dimes, d, and the number of quarters, q, can be expressed by the equation 01.d+0.25q= 12.5.

Question 1 - 1 pts
If Jada has 4 quarters, how many dimes does she have?

Question 2 - 1 pts
If Jada has 10 quarters, how many dimes does she have?

Question 3 - 1 pts
Is the number of dimes a function of the number of quarters? If yes, write a rule (that starts with d =...) that you can use to determine the output, d, from a given input, q. If no, explain why not.

Question 4 - 1 pts
If Jada has 25 dimes, how many quarters does she have?

Question 5 - 1 pts
If Jada has 30 dimes, how many quarters does she have?

Question 6 - 1 pts
Is the number of quarters a function of the number of dimes? If yes, write a rule (that starts with q =...) that you can use to determine the output, q, from a given input, d. If no, explain why not.

Answers

1 She has 115 dimes because 0.10*115=11.5 0.25*4=1.00 11.5+1.00=12.5

2 She has 100 dimes because 0.10*100=10.00 and 0.25*10= 2.5 10+2.5=12.5

3 I think they don’t function because quarters are worth more than a dime.

4 She has 40 quarters because 0.25*40=10.00 0.10*25=2.5 10.00+2.5=12.5.

5 She has 38quarters because 0.25*38=9.5 0.10*30=3 9.5+3=12.5

6 Yes they can function because q=dx-12.5

How do I simply these in easy simple terms please I’m very tired

Answers

Answer:

combine like terms

Step-by-step explanation:

What is the measure of
RST?

Answers

Answer:

D. 47

Step-by-step explanation:

An airplane flew 1100 miles in 2.5 hours. How
fast was it flying in miles per hour?

Answers

Answer:

fast

Step-by-step explanation:

7. A city lot is twice as long as it is wide, If its perimeter is 480 units, what are the dimensions of the lot?

Answers

Answer:

Step-by-step explanation:

P = 480

P = 2 length + 2 width

but we also know that

2width = length

so plug that into the length

P = 2(2width) + 2 width

480 = 4 width + 2 width

480 = 6 width

80 = width

160= length

see?

Dione is designing a water fountain for the lobby of a new hospital. She knows that the fountain will have a circular pool with water projected upward at a constant rate from the center of the pool. She needs to determine the maximum height, so she uses a linear model to represent the situation.

Answers

Answer:

Diane did not choose a good model. Because the water is a projectile with a maximum height, she should use a quadratic model

Step-by-step explanation:

Here, we want to choose the correct option

As we are having a circular projection, we should be looking at having a parabolic representation i.e a model that looks like a parabola

So the correct answer in this case is that;

Diane did not choose a good model. Because the water is a projectile with a maximum height, she should use a quadratic model

10 – 7w – 13 – 7w + 15

I need help plsss!

Answers

Answer:

12-14w

Step-by-step explanation:

answers for the 2 boxes please :)​

Answers

the answer is (4,19). since both equal y you can set them equal to each other to solve for x then plug x back in to one of the equations to find y

Answer:

(0,3) (0,7)

Step-by-step explanation:

Can you please help me!

Answers

Answer:

16

Step-by-step explanation:

Pythagoras theorem was used

The total cost of a pizza and 3 drinks is $19. The price of the pizza is $10 and each drink is the same price, d.

Answers

Answer:

each of the drinks are $3

Step-by-step explanation:

Answer: 10 d d d / 19

D = 3

Step-by-step explanation:

k ( n ) = | n + 1 | − 1 ; Find k ( 4 )

Answers

Answer:

4

Step-by-step explanation:

If Marisa saved for 10 weeks, how
much money would she have now?

Answers

Answer:

125

Step-by-step explanation:

10*10=100+25=125

Find the exact length of the third side

Answers

Answer:

9.9

Step-by-step explanation:

If you are reading this just know you are appreciated & loved ! If u need anyone to talk to I’m here

The function g(x) is a translation of f(x) = (x + 3)2 – 10. The axis of symmetry of g(x) is 5 units to the right of f(x) . Which function could be g(x)?

Answers

Answer:

There are two possible solutions for [tex]g(x)[/tex]:

[tex]g(x) = (x+3)^{2}-5[/tex]

[tex]g(x) = x^{2}-3\cdot x +4[/tex]

Step-by-step explanation:

From statement, we understand that [tex]g(x)[/tex] is defined by the following operation:

[tex]g(x) = f(x) +5[/tex] (1)

If we know that [tex]f(x) = (x+3)^{2}-10[/tex], then [tex]g(x)[/tex] is defined by:

[tex]g(x) = (x+3)^{2}-10+5[/tex]

[tex]g(x) = (x+3)^{2}-5[/tex]

[tex]g(x) = x^{2}-3\cdot x + 9 -5[/tex]

[tex]g(x) = x^{2}-3\cdot x +4[/tex]

Answer:

There are two possible solutions

Step-by-step explanation:

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answers

your query :

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answer:

the required equation to represent the total cost with respect to every hour will be

=》y = 42x + 65

Step-by-step explanation:

total cost (y) = charge to make a house call + additional charge for every our

so, total additional charge for x hours

= 42 × x = 42x

hence y = 65 + 42x ( where 65 is charge to make a house call , y is total cost and 42x is additional charge for x hours )

i hope u got it

have a great day ^_^

what expression is equivalent to x^2-10x+24

Answers

Answer:

(x-6)(x-4)

or

x=-6   , x=4

Step-by-step explanation:

What is 12 divided by 2/3 and why? Please help

Answers

Answer:

8

Step-by-step explanation:

12/3=4

4 times 2=8

what is 5.3635 rounded to the nearest thousandth

Answers

Answer:

5.364

Step-by-step explanation:

5.3635 is the given number, and because the number next to the thousandths is a five, the number in the thousandths place can be rounded to 4.

у + 3x = -4 2х - Зу = -21
Help plz​

Answers

Answer:

у + 3x = -4 2х - Зу = -21

Step-by-step explanation:

sea level = 0

A submarine is 120 ft below sea level. It climbs 50 ft towards sea level.

Where is the submarine compared to sea level now?

A. −170 ft

B. 70 ft

C. −70 ft

Answers

Answer:

c. -70

Step-by-step explanation:

subtract 50 from 120 you get 70, and since we are below sea level it is negative

GIVING BRAINIEST!! ANSWER ASAP PLS
When an object is dropped from a point above the ground the amount of time it takes to hit the ground is given by the equation [tex]t=\sqrt{\frac{2d}{9.8} }[/tex] where d is the distance above the ground, in meters, and t is given in seconds.


If you need something to fall for exactly 1.5 seconds, how high should it be when it is dropped? Round your answer to the nearest tenth (one decimal place)

Answers

Answer:

15m/s

Step-by-step explanation:

HELPPppPpPPpppppppp BRAINLIESTTTT

Choose the inequality symbol (>,


<


=

Answers

The inequality is < because the equal sign is an equality.
I don’t need a brai

Help due at 11:59 please help

Answers

Answer:

Step-by-step explanation:

the last choice looks good

Answer: Its the bottom one i believe

Step-by-step explanation:

Domain slope stuff you don't want to hear have a good night :)

Which expression is equivalent to 4x-5 ?
Select all that apply
A. 3(2x-5)-2(x-5)
B. 3x-2-(3-x)
C. 7x+1-3(x+2)
D. 4(2x-1)-2(2x-1)

Answers

Answer:

A

Step-by-step explanation:

[tex]x58 \frac{.225 {.39 < }^{?} }{?} [/tex]

[tex].555121213 \frac{ = < < \sqrt{ { \frac{?}{?} }^{?} } }{?} [/tex]

what is the value of X ? show step by step

Answers

Answer:

x=20

Step-by-step explanation:

The measure of BCD will be equal to the measures of BAC and ABC added together.

Hope this helps :-)

Select the correct answer.
Which table represents a linear function?
NEED ASAP

Answers

Answer:

C

Step-by-step explanation:

the rate of change is constant in y (adding 3) and x (adding 2)

a i’m pretty sure sorry if it’s wrong

help please i’ll give brainliest.

ΔABC is similar to ΔFED. Answer the questions to find the length of DF .


1. Which side in ΔFED does AB in ΔABC correspond to?
Write your answer in the space below.


2. Which side in ΔFED does CB in ΔABC correspond to?

Answers

Step-by-step explanation:

ΔABC is similar to ΔFED.

AB are the first 2 letters in ΔABC. Similarly, FE are the first 2 letters in ΔFED.

Hence side AB corresponds to side FE.

CB are the last 2 letters in ΔABC. Similarly, DE are the last 2 letters in ΔFED.

Hence side CB corresponds to side DE.

Answer:

1.  EF in ΔFED corresponds to AB in ΔABC.

2. DE in ΔFED corresponds to CB in ΔABC.

3. The length of DF is 10.

Step-by-step explanation:

Given: ΔABC is similar to ΔFED. Find the length of DF.

To Find: The length of side DF in ΔFED

Since, ΔFED is a right-angled triangle and also similar to ΔABC,

Applying similarity of triangles principle,

AB = 4  ,  EF = 8

BC = 3  ,  DE = 6

Now, applying Pythagorean theorem on ΔFED,

Hypotenuse² = Length² + Base²

⇒ DF² = DE² + EF²

⇒ DF² = 6² + 8²

⇒ DF² = 100

⇒ DF = √100

⇒ DF = 10

Final Answer: Hence the length of side DF is 10.

what is the sum of the interior angles of a polygon that has 16 sides

Answers

2520
16-2=14x180=2520
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