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
elena55 [62]
3 years ago
7

Need help with this

Mathematics
1 answer:
Stells [14]3 years ago
3 0

Answer:

38 = D

Step-by-step explanation:

The 3 angles of a triangle equal 180 degrees

<B + <C + <D  = 360

7x+ 12 + 2x+13 + 2x+ 12 =180

Combine terms

11x+37 = 180

Subtract 37 from each side

11x+37-37 = 180-37

11x =143

Divide by 11

11x/11 = 143/11

x =13

We want to find angle D

2x+12 = D

2(13) + 12 = D

26+12 = D

38 = D

You might be interested in
-4x-10x simplify the expression
n200080 [17]

Answer:

= -14x

Step-by-step explanation:

Since the equation is saying to subtract 10x, we are going to change the minus sign to a addition sign and change positive 10 to negative and continue the rest.

4 0
3 years ago
Read 2 more answers
Solve: 10(1 + 3y) = 20 <br> What does y equal?<br> Y =
marin [14]

Answer:

y = 1/3 ≈ 0.3

hope this helps! :)

6 0
3 years ago
What is the value of the underline digit 56.123 1 is underlined.A.ten B.one C.one-tenth D.one-hundredth ? Not sure if it is ten
Triss [41]
1 is in the one-tenths place. If 2 was in this spot, it would be two-tenths.

Here are the place values for the question's given number of 56.123.

5- tens
6- ones
decimal
1- tenths
2- hundredths
3- thousandths

ANSWER:
1 has the place value of C) one-tenth

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
The first blanks options are -2 , -1/2 , 2 , 1/2
Pie

Answer:

equation 1

y = -2x

equation 2

y = x-3

Solution to both

(1,-2)

Step-by-step explanation:

We need to get the equations of both lines

General form is;

y = mx + c

where m is slope and c is the y-intercept

Table 1

since we have a point 0,0; the y-intercept here is zero

Let us get the slope. We can do this by selecting any two points

m = (y2-y1)/(x2-x1)

m = (2-10)/(-1+5) = -8/4 = -2

So the equation of the first line is;

y = -2x

Table 2

we get the slope

m = (4+2)/(7-1) = 6/6 = 1

The partial equation is;

y = x + c

To get c, we select any two point and substitute

4 = 7 + c

c = 4-7

c = -3

So the equation is;

y = x-3

To get the solution to both systems, we equate the y

-2x = x - 3

-2x-x = -3

-3x = -3

x = -3/-3

x = 1

To get y, we substitute;

recall; y = -2x

y = -2(1)

y = -2

Solution to the system is;

(1,-2)

7 0
3 years ago
The track club runs the 50-yard dash. How many inches do they run?
kiruha [24]

Answer:

1800in

Step-by-step explanation:

3ft=1yd

3x50=150ft

12in=1ft

12x150=1800in

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following equations is of a parabola with a vertex at (0, 3)?
    10·1 answer
  • Jack paid $13.75 to buy slices 3 of pizza and 4 hot dogs at a concession stand. Sarah paid $9.75 to buy 2 slices of pizza and 3
    12·2 answers
  • What are the measures of ∠1, ∠2, and ∠3? Enter your answers in the boxes.
    13·1 answer
  • The length of a rectangle is 8 feet more than its width. If the width is increased by 4 feet and the length is decreased by 5 fe
    6·2 answers
  • What is the value of x?
    5·1 answer
  • In ASTU, SU is extended through point U to point V, m_STU = (2x + 8),
    10·1 answer
  • What is the slope AND y-intercept to this equation: y=6x-8
    15·2 answers
  • Help pls lollll <br> 10th grade mathematics
    15·1 answer
  • Guys please help me this is due tonight thanks
    15·1 answer
  • Violet is planning to make 32 semiannual loan payments of $1580 dollars each. If her bank charges an annual interest rate of 3.8
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!