1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
11

PLEASE HELP IM BEGGING PLEASEEEE SEE ATTACHED DOCUMENT

Mathematics
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

Step-by-step explanation:

5.

3x-1 = 4x+13

-1=x+13

12=x

3(12)-1

36-1

Answer: 35

Second 5.

I'm not completely sure what this is referring to (please tell me if there is another part for this because there isn't any numbers such as <1 shown on the picture.)

6.

90+40+x=180

130+x=180

50=x

Answer: 50

7.

x+71=90

x=19

Answer: 19

You might be interested in
A pentagon has angle measures of 12x°, 7x°, 16x°, 9xº, and 10x°. Find the<br> value of x.
Musya8 [376]

Answer:

10

Step-by-step explanation:

one interior angle in a pentagon is 108^o.

5 interior angles are 540^o.

If we add 12+7+16+9+10, we get 54x=540^o

That means x=10

3 0
3 years ago
What is the answer to the question
JulijaS [17]
The answer to the question is 13
6 0
3 years ago
Read 2 more answers
How do i write a proof for this
babymother [125]
Since, the co-interior angles(55° and 125°) are supplementary(sum is 180), therefore the lines are parallel.
6 0
3 years ago
Janeel has a 10-inch by 12-inch photograph. She wants to scan the photograph, then reduce the result
Vaselesa [24]

<u>Complete Question:</u>

Janeel has a 10 inch by 12 inch photograph. She wants to scan the photograph, then reduce the results by the same amount in each dimension to post on her Web site. Janeel wants the area of the image to be one eight of the original photograph. Write an equation to represent the area of the reduced image. Find the dimensions of the reduced image.

<u>Correct Answer:</u>

A) (10-x)(12-x)=15

B) Dimensions are : Length = 10-x = 3 inch , Breadth = 12-x = 5 inch

<u>Step-by-step explanation:</u>

a. Write an equation to represent the area of the reduced image.

Let the reduced dimensions is by x , So the new dimensions are

length=10-x\\breadth=12-x

According to question , Area of new image is :

⇒ Area = \frac{1}{8}Length(breadth)

⇒ Area = \frac{1}{8}(10)(12)

⇒ Area = 15

So the equation will be :

⇒ (10-x)(12-x)=15

b. Find the dimensions of the reduced image

Let's solve :  (10-x)(12-x)=15

⇒ 120-10x-12x+x^2=15

⇒ 120-22x+x^2=15

⇒ x^2-22x+105=0

By Quadratic formula :

⇒ x = \frac{-b \pm \sqrt{b^2-4ac} }{2a}

⇒ x = \frac{22 \pm8 }{2}

⇒ x = \frac{22 +8 }{2} , x = \frac{22 -8 }{2}

⇒ x = 15 , x =7

x = 15 is rejected ! as 15 > 10 ! Side can't be negative

⇒ x =7

Therefore, Dimensions are : Length = 10-x = 3 inch , Breadth = 12-x = 5 inch

5 0
2 years ago
Solve each system using substitutions<br> Y+4=x<br> -2+ Y=8
klemol [59]
-2 + Y = 8
Y = 10
Plug in Y to the first equation, 10 + 4 = X
X = 14
3 0
3 years ago
Read 2 more answers
Other questions:
  • Help is this correct??(
    10·2 answers
  • The slope of any line perpendicular to , where A(0, -3) and B(4, 9) are two points on the line, is m =
    8·1 answer
  • which equation is in slope intercept form and represents a line with slope 3 through the point (9,-4)?
    9·1 answer
  • Please help :) meeeeeeeeeeee
    13·2 answers
  • Madeline received $300 for her birthday. She deposits it into a savings account with an interest rate of 2.45%. She makes monthl
    12·1 answer
  • I need help what’s 6.4 divided by 1.6
    13·2 answers
  • 2 7/9 times 2 1/5 in simplest form
    7·1 answer
  • If x = 1/2, then x − 1/2 = 0. This is the same as (?) = 0.
    7·2 answers
  • What is 420 + 69? Pleaseeeee
    5·2 answers
  • PLEASE HELP !!! FIND THE SLOPE OF THE LINE
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!