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
lubasha [3.4K]
3 years ago
11

Please help with these 3

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

3) 146 degrees

4) 471 degrees

5) x = 100 and 3x = 300

Step-by-step explanation:

all three are polygons whose sum of all interior angles can be found by using the formula (n - 2)*180 where 'n' refers to the number of sides

In #3 and 5 there are 5 sides, so (5 - 2)*180 = 3(180) giving a total of 540 degrees. Add all known angles and deduct from 540.

#4 has 7 sides, so (7 - 2)*180 = 1260 degrees. Add all known angles and deduct sum from 1260.

#5 Add all integers plus 'x' + '2x' to get 240 + 3x = 540

You might be interested in
You are remodeling your kitchen. You've contacted two tiling companies who gladly told you how long it took their workers to til
Ray Of Light [21]
The answer is 7x = 6(x + 15)

x - Jim's rate
y - Pete's rate
<span>Jim completed half the floor in 7 hours:  7x = half of the floor
</span><span>Pete completed the other half of the floor in 6 hours:    6y = half of the floor
So: 7x = 6y

</span><span>Pete can lay 15 more tiles per hour than Jim: y = x + 15

</span>7x = 6y
y = x + 15

Substitute the second equation into the first one:
7x = 6(x + 15)
6 0
3 years ago
If I have three crackers and I ate one how many crackers do I have now?
ivanzaharov [21]
If you have three crackers and eat one the answer is C.2
5 0
2 years ago
192 rounded to nearest tenth?
Andrews [41]

There is no TENTH in 192 so 192 rounded to the nearest TENTH is 192.


If you meant TEN then 192 rounded to the nearest TEN is 190.

Good Luck!

5 0
3 years ago
Read 2 more answers
The orange shape is a dilation of the black shape
grigory [225]

Answer:

 1/4

Step-by-step explanation:

The orange shape is 3 units tall and 4 units wide. The black shape is 12 units tall and 16 units wide. The scale factor is ...

 orange/black = 3/12 = 4/16 = 1/4

<h2 />
7 0
2 years ago
What is the volume of the rectangular prism? 4 cm 4 cm 4 cm​
Stels [109]

Answer:

64cm^3

Step-by-step explanation:

4*4*4=64

7 0
3 years ago
Other questions:
  • Given the table, find m. Show your work!
    8·1 answer
  • Write the next two terms in the pattern. 3, 10, 17, 24, . . .
    7·2 answers
  • Just make his travel time to Joe divides the distance D in miles by 5 less than he expected average speed in miles per hour if J
    5·1 answer
  • What is the directrix of the parabola given by the equation y = –5x2 + 60x – 176?
    8·2 answers
  • Is 2 hours and 30 minuets more or less than 10%of a day. Explain your reasoning
    8·2 answers
  • If the slope of BC is 1/2 what is the slope of AC
    10·1 answer
  • Help i’ll give extra points dawg
    12·1 answer
  • Which math expression means "the difference of 40 and 12"?
    7·1 answer
  • A local business charges $20 to set up their sweatshirt printing machine with the design and $9.75 in materials per sweatshirt t
    6·1 answer
  • Help help help please please please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!