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
luda_lava [24]
3 years ago
6

Pls help me with the math question ty

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
8 0

Answer:

x=20, 3x=60, 2x=40

Step-by-step explanation:

3x+80+2x=180, so

x=20

Pavel [41]3 years ago
4 0

Answer:

x=20

Step-by-step explanation:

That is a supplementary line, so all the angles added up should be 180°

3x+2x+80=180

First combine 2x and 3x

5x+80=180

Then subtract 80 from 180

5x=180-80

5x=100

Now divide both sides by 5

5x/5=100/5

x=20

You might be interested in
Which of the following equations has exactly one solution?
Marianna [84]
D, answer is x=-11 ….
4 0
3 years ago
Read 2 more answers
Plz help and thank you
avanturin [10]

Answer:

THE EQUATION OF THE LINE IS X=4

Step-by-step explanation:

☜(゚ヮ゚☜)

4 0
3 years ago
Which is the value is a solution of the inequality 9>1/2r
Leno4ka [110]

Step-by-step explanation:

<u>Step 1:  Multiply both sides by 2</u>

9 > \frac{1}{2}r

9 * 2 > \frac{1}{2}r * 2

18 > r

<u>Step 2:  Determine what numbers would be a valid solution</u>

Any number that is greater than 18, not including 18 would pose a valid solution to the expression that was provided.

4 0
2 years ago
Amir has a stand where he sells lemonade for $1.00 per cup and packages of chocolate chip cookies for $1.50. If he earns $280 on
nikdorinn [45]

Answer:

160 cups of lemonade and 80 packages of cookies.

Step-by-step explanation:

l = lemonade

c = cookies

l+1.5c=280

2c=l

Substitute.

3.5c=280

Simplify.

c=80

Substitute into the second equation.

l=160.

Plug it back into the equations to check.

3 0
4 years ago
A page should have perimeter of 42 inches. The printing area within the page
Tamiku [17]

Overall  dimensions of the page in order to maximize the printing area is  page should be 11 inches wide and 10 inches long .

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

We have , A page should have perimeter of 42 inches. The printing area within the page  would be determined by top and bottom margins of 1 inch from each side, and the  left and right margins of 1.5 inches from each side. let's assume  width of the page be x inches  and its length be y inches So,

Perimeter = 42 inches

⇒ 2(x+y) = 42\\x+y = 21\\y = 21-x

width of printed area = x-3  & length of printed area = y-2:

area = length(width)

area = (x-3)(y-2)\\area = (x-3)(21-x-2)\\area = (x-3)(19-x)\\area = -x^{2} + 22x -57

Let's find \frac{d(area)}{dx}:

\frac{d(area)}{dx} = \frac{d(-x^{2}+22x-57)}{dx} = -2x +22 , for area to be maximum \frac{d(area)}{dx}= 0

⇒ -2x+22 = 0\\2x =22\\x=11 inches

And ,

y = 21-x\\y = 21-11\\y = 10 inches

∴ Overall  dimensions of the page in order to maximize the printing area is  page should be 11 inches wide and 10 inches long .

7 0
3 years ago
Other questions:
  • Write $<br> 55.26 in expanded form
    13·2 answers
  • What number is between 1and7
    13·1 answer
  • A portrait without its frame has a height 2.5 times its width w, in inches. Its frame is 2 inches wide all along the perimeter.
    12·1 answer
  • Santiago, a park ranger, was trying to estimate the number of catfish in a lake. He randomly caught 32 catfish, tagged them, and
    13·2 answers
  • Which is different? Find “both” answers.
    12·1 answer
  • Find the values of the variables and please give the reasons​
    6·1 answer
  • x^ 3 + 3 x ^ 2 - 9 x - 27 draw the graph of the first derivative and the second derivative on the same set​
    8·1 answer
  • Work out the area of trapezium ABDE
    14·1 answer
  • Given: x + y = 10.<br><br> GIVEN X+Y=10<br><br> If x = -21, what is y?<br><br> -31<br> 31<br> 11
    5·1 answer
  • Solve the system of equations using the matrix equation given. What is y equal to? Explain the steps that you took to solve this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!