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
mel-nik [20]
3 years ago
6

When the positive integer n is divided by 7, the remainder is 2. What is the remainder when 5n is divided by 7?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Therefore the reminder is 3 when 5n is divided by 7.

Step-by-step explanation:

we know that

Dividend = quotient × Divisor +Reminder

⇔ n = Q(n) × 7 + 2          [ let Q(n)  is quotient]

multiplying by 5 both sides

5n = 5 Q(n) ×7 + 2×5

⇔5n = 5 Q(n) ×7 +10

⇔5n=  5 Q(n) ×7 +7 +3

⇔ 5n = (5Q(n) +1) × 7 +3

Therefore the reminder is 3 when 5n is divided by 7.

You might be interested in
I need help ASAP!!!!!!!
solmaris [256]

Answer: i think the answer is d or c im not to sure

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help me with this please!!
Mamont248 [21]

Answer: (2,7)

Midpoint formula = (\frac{x1,x2}{2} ,\frac{y1,y2}{2} )

1 + 3 / 2 = 2

5 + 9 / 2 = 7

7 0
3 years ago
A concession stand at a baseball game sells 3 apples for $2.00. How can you find the cost for 10 apples?
Angelina_Jolie [31]
You would do $2.00 ÷ 3 = $0.67
10 × $0.67 = $6.70

10 apples would cost $6.70

HOPE THIS HELPED :)
6 0
3 years ago
Read 2 more answers
Garth estimated the height of the door to his classroom in meters .What is a reasonable estimate?
Paraphin [41]
The most reasonable answer would be 2 meters since two meters equals about 6 feet.
6 0
2 years ago
Read 2 more answers
Question 16 (Essay Worth 7 points)<br><br> Verify the identity.<br><br> tan (x + π/2) = -cot x
Rus_ich [418]

Step-by-step explanation:

We know that tan=sin/cos, so tan(x+π/2)=

\frac{sin(x+pi/2)}{cos(x+pi/2)}

Then, we know that sin(u+v)=sin(u)cos(v)+cos(u)sin(v),

so our equation is then

\frac{sin(x)cos(\pi/2)+cos(x)sin(\pi/2)}{cos(x+\pi/2)}  = \frac{cos(x)}{cos(x+\pi/2) }

Then, cos(u+v)=cos(u)cos(v)-sin(u)sin(v), so our expression is then

\frac{cos(x)}{cos(x)cos(\pi/2)-sin(x)sin(\pi/2)} = \frac{cos(x)}{-sin(x)} = -cot(x)

6 0
2 years ago
Other questions:
  • GEOMETRY ONE QUESTION PLZ HELP
    13·1 answer
  • SOMEONE PLEASE HELP ME ASAP!!!!!!!
    5·1 answer
  • Find the smaller of two consecutive intergers if the sum of the smaller and twice the larger is -4
    5·1 answer
  • What are expressions that are equivalent to 16x + 36
    15·1 answer
  • HELP ME PLEASE I NEED HELP
    9·2 answers
  • Consider the following polynomial expression
    14·1 answer
  • (2x + 38)°<br> (3x – 9)<br> What is the value of x?
    9·1 answer
  • On a baseball field, the pitcher's mound is 60.5 feet from home plate. During practice, a batter hits a ball 226 feet at an angl
    9·1 answer
  • 1.35 divided by 3.8 repeating
    14·1 answer
  • Subtract the mixed numbers by finding the common denominator. Three and four sixths minus one and one half equals blank
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!