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
Veseljchak [2.6K]
2 years ago
6

Can i please get help with these

Mathematics
1 answer:
Kryger [21]2 years ago
8 0

Answer:

7. x=3, 8. x=7, 9. x=15.

Step-by-step explanation:

7. If lines m and n are congruent, then angles DCF and CFE are congruent. 15x+3=18x-6. Solve for x. --> 15x+9=18x-->3x=9-->x=3

8.If line m is parallel to line n, then the corresponding angles are congruent. So, 20x+1=22x-13 Solve for x. 20x+14=22x-->14=2x-->x=7.

9. The supplementary angle of 110 is 70. Note that all of the inner angles of a triangle are equal to 180. Form an equation using the the values: (4x+8)+(2x+12)+70=180. Simplify; 6x+90=180. Solve for x: 6x+90=180-->6x=90-->x=15.

Hope this helps!

You might be interested in
What is the intermediate step in the form (x+a)2 = b as a result of completing the square for the following x^2+16x-145=10x-7
Lorico [155]

Answer:

(x+3)^2=147

Step-by-step explanation:

7 0
2 years ago
Gary has a box of pencils. In the box, 7/21 of the pencils have been sharpened. Select the three fractions that are proportional
Luda [366]

Answer:

A) 1/3 D) 13/39 E) 14/42

Step-by-step explanation:

hope this helps. brainliest please.

8 0
3 years ago
Read 2 more answers
The table shows how much money Edguardo earns as a golf coach. He charges a flat fee of $38, plus $22 per hour. Complete the tab
Vesnalui [34]
Let's re-read the statement and question, and then break it down.
He charges a flat fee of $38, plus $22 per hour.
A flat fee of $38 is only a one-time pay, and will never be paid for again.
This means if after two hours, we only add $38 once overall, never more.
Every hour that goes by, he earns $22 each hour.
Now that we've broken this down, we can make an equation.
Let's do 1 hour.
1(22) + 38 = 22 + 38, = 60.
For 1 hour he earns $60.
Let's do 2 hours.
2(22) + 38 = 44 + 38, = 82.
For 2 hours he earns $82.
Let's do 3 hours.
3(22) + 38 = 66 + 38, = 104.
For 3 hours he earns $104.
Let's do 4 hours.
4(22) + 38 = 88 + 38, = 126.
For 4 hours he earns $126.
This is a pattern.
Now let's do 8 hours, which is the main question, "How much does he make in 8 hours?".
8(22) + 38 = 176 + 38, = 214.
For 8 hours he earns $214.
I hope this helps!
4 0
3 years ago
Read 2 more answers
Determine the measure of ∠DBC. answers: 1) 130° 2) 115° 3) 230° 4) 65°
Norma-Jean [14]

Answer:

65 degrees

Step-by-step explanation:

65 degrees

it is 65 because of the vector relationship: 30 + 100 = 130. 130/2=65 degrees

5 0
3 years ago
Read 2 more answers
Sarah biked the same distance each day for 6 days. If she traveled 468 kilometers altogether, how many kilometers did she travel
I am Lyosha [343]
76 kilometers per day.

Step by step

468 divided by 6 = 76

76•6=468
8 0
3 years ago
Other questions:
  • A basketball player scored 19 times during one game. He scared a total of 28 points, two for each two-point shot and one for eac
    15·2 answers
  • Which ordered pair in the form(x,y) is a solution of this equation?
    5·1 answer
  • The oranges below are similar. Find the radius of the smaller orange. Correct answer will get brainliest.
    5·1 answer
  • A jar contains 3 pennies, 5 nickels, 4 dimes, and 6 quarters. of a coin is selected at random, what is the probability of select
    12·1 answer
  • HELP IN THIS QUESTION
    9·2 answers
  • The ratio of the measures of the angles in a triangle is 6:4:2, find each angle. ​
    8·1 answer
  • Area 15 cm 12 cm 19 cm triangle
    11·1 answer
  • What is the numeral preceding 100000 with base of 4​
    5·1 answer
  • Which team has the best record? Explain how you know. a. Jules' Rules; For every three games that they played, they only lost 1.
    11·1 answer
  • If the United States is approximately 3.8 x 10 square miles and France is approximately 2.1x10' square
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!