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
Kruka [31]
3 years ago
7

Can someone help me with this please!~

Mathematics
2 answers:
Eduardwww [97]3 years ago
7 0
Note that sum of triangle interior angles is 180. So,

(12x+12)+15+(3x+18)=180

15x+45=180

15x=135

x=9

Since A=12x+12=12.9+12=120

And C=3x+18=3.9+18=45
Tems11 [23]3 years ago
5 0

Answer:

a=120

c=45

i took the quizzzz

You might be interested in
Find the slope of the line that passes through these two points: (- 1, 0) and (4, - 2) .
I am Lyosha [343]
Slope is vertical change over horizontal change. Since coordinates conveniently give both the horizontal and vertical coordinates of a points, we can use the coordinates of both points to differentiate, or find the change horizontally and the change vertically between the two points.
8 0
3 years ago
Paul went on a bike ride of 30 miles. He realized that if he had gone 8 mph faster, he would have arrived 12 hours sooner. How f
lara [203]

Answer: He actually rode 2 miles per hour on his trip

Step-by-step explanation: Maybe unconventional, but express the time it took, then figure the speed.

Time  = distance /speed  t will represent time, s is the speed:  t = 30/s Use the rime it would have taken at the higher speed to create an equation:

t-12 = 30/s+8   replace the y with the 30/s

30/s -12 = 30/s+8

(s)(30/s -12 ) = (s)(30/s+8 )  Cross multiply to cancel denominators  

(s-8)(30 -12s) = (s-8)(30s/s+8 ) ==> 30s +240 -12s² -96s =30s   Simplify:  

(-1)(-12s² -96s +240 ) =0 ==>  12s² +96s -240  divide all by 12

s² + 8s -20 = 0   Factor and solve for s

(s +10)(s -2) =0    s-2=0   S= 2  

Proof:

30/2 = 15 hours for original trip at 2mph,  

increase speed by 8mph   2 + 8 = 10mph

30 miles at 10mph takes 3 hours; that is 12 hours less than his actual trip.

(Brainilest, please :-)

4 0
3 years ago
Dro Kita
Triss [41]
How is this problem laid out
4 0
2 years ago
5y + 4 = 4y +5<br> Halp plz
shepuryov [24]

Answer:

y=1

Step-by-step explanation:

5y + 4 = 4y + 5 4y + y + 4 = 4y + 4 + 1 4y + 4 + y = 4y + 4 + 1 Kill the similar parts from both sides y = 1

8 0
3 years ago
Read 2 more answers
Does anybody know the answer?
Anon25 [30]

Answer:

0.00000381469

Step-by-step explanation:

there u go

4 0
2 years ago
Other questions:
  • I really need to get this done please help
    9·2 answers
  • Anyone please,Solve &amp; explain
    14·1 answer
  • A item is regularly priced at $73 . Manuel bought it at a discount of 45% off the regular price.
    9·2 answers
  • the more aerobic exercise (for example, running) a person does, the more endurance he or she will have. true or false? the amoun
    15·1 answer
  • Imagine that you are given two linear equations in slope-intercept form. You notice that the slopes are the same, but the y-inte
    8·1 answer
  • 4. Is the graph an example of direct variation? If so, what is the constant of variation?
    14·1 answer
  • Find the x-intercept and y-intercept
    6·1 answer
  • Lacey pays $15 for each hour of golf lessons and $10 for equipment rental. Is the total cost of Lacey's lesson a function of the
    12·1 answer
  • Lizet bought a bag of gummy bears and ate one-third of them. The next day, she ate 16 more gummy bears. If she ate a total of 37
    11·1 answer
  • What is 2 less than the square of a number ASAP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!