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
Blizzard [7]
3 years ago
7

Really need help

Mathematics
1 answer:
Ket [755]3 years ago
4 0
3n - 80 = 5n + 8\\3n=5n + 88\\ -2n = 88\\\\ n = -44
You might be interested in
Can someone help me for this question please? Why I got wrong answer. ASAP!!!
Snowcat [4.5K]

Answer:

a=8.06

A=29.74

B=60.26

Step-by-step explanation:

This is a right angled triangle and Pythagoras theorem is to be obeyed.

To get c, we follow the Pythagoras rule that says

Hyp² = Opp² + Adj²

c= Hypotenuse

c²= a² + b²

c² = 4² + 7²

c² = 65

c = √65 = 8.06

For angle A,

the opposing side to the angle = a = 4

The adjacent side to the angle = b = 7

Following trigonometry rule.

Tan A = opp/adj

Tan A = 4/7

A = Tan–¹(4/7)

A = 29.74°

For angle B,

Opposing side = 7

Adjacent side = 4

Tan B = 7/4

B = Tan-¹(7/4)

B = 60.26°

5 0
3 years ago
Can someone pls help me
ipn [44]
I think it 48 i’m not sure
3 0
3 years ago
Help plz
Sidana [21]
First find the amount of containers:
6.3 kg/0.35 kg
=18 containers

Now we can find the amount of money earned:
18 containersx$2.99
=$53.82

Bella will earn $53.82 if she sells all the containers.
6 0
3 years ago
Read 2 more answers
What’s 7(c+2) if c=9
ddd [48]

Answer:

77

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
sam's music teacher told him to practice his trombone for X amount of hours. he spent X amount of hours practicing did he practi
Crank
Yes if he practices X amount of hours and is told to practice X amount of hours than he practiced long enough
4 0
3 years ago
Other questions:
  • Arnie keeps his pet snake in an open-topped glass cage. The outside of the cage is 73 cm long, 60 cm wide, and 38 cm high. The g
    9·1 answer
  • Me Sidney rented a car for a day. The rental fee consists of flat rate of $19.99 plus 0.21 for an additional mile. For how how m
    15·1 answer
  • Hey can you please help me posted picture of question
    8·1 answer
  • Can someone please explain to me step by step how to do these
    15·1 answer
  • Alana spent $60 dollars of her $300 dollar paycheck on gift. What percent of her paycheck was spent on a gift
    10·2 answers
  • Ten frogs can catch 10 flies in 10 minutes. How long would it take one frog to catch one fly?
    8·1 answer
  • An isosceles triangle has an angle that measures 26°. Which other angles could be in that
    14·1 answer
  • What expression -5+(-5r)+10​
    8·1 answer
  • Find the length of the line segment formed by the points (2, 3) and (2, 5)
    8·1 answer
  • What is the mean of the following series : 2, 2, 2, 4, 4, 5, 5, 6, 8, 11, 12, 16 and 18 ?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!