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
Alex
3 years ago
10

Question:

Mathematics
1 answer:
aev [14]3 years ago
4 0

Answer:

x = - 1

Step-by-step explanation:

Given

\frac{2}{5} (x - 4) = 2x ( multiply both sides by 5 to clear the fraction )

2(x - 4) = 10x

2x - 8 = 10x ( subtract 2x from both sides )

- 8 = 8x ( divide both sides by 8 )

- 1 = x

You might be interested in
The formula for the circumference of a circle is c= 2pi r, where r is the radius. Rearrange the formula to solve for our and sel
ratelena [41]

Answer:  r = C/(2pi)

This is the same as writing r = \frac{C}{2\pi}

=========================================================

Explanation:

pi is some number (approximately 3.14) which means 2pi is also some number (roughly 6.28)

Saying c = 2pi*r means we have 2pi times r, and the result is the circumference c. To isolate r, we'll undo the multiplication. We'll undo it by dividing both sides by 2pi like so

C = 2pi*r

C/(2pi) = r

r = C/(2pi)

in which we can write it like r = \frac{C}{2\pi}

So whatever C is, we divide it over 2pi (aka roughly 6.28) to get the radius.

-----------------

Extra Info (Optional Section):

As an example, let's say the circumference of the circle is 628 feet. This means the distance around the circle is 628 feet. So C = 628 would lead to...

r = C/(2pi)

r = C/(6.28)

r = 628/(6.28)

r = 100

So the radius would be roughly 100 feet.

8 0
3 years ago
Solve this system by substitution. y = 5x - 15 y = 2x - 6 *Remember to write your answer as a coordinate point (x,y Solve this s
oksano4ka [1.4K]
5x - 15 = 2x - 6
3x = 9
x = 3
Y = 5(3) - 15
Y = 0
(3,0)
7 0
3 years ago
27 + 5 x 6 A Little Problem With this so some help please?
Kay [80]

Answer:

57

Step-by-step explanation:

1) According to PEMDAS, <em>multiply </em>first: 27+ 5x6= 27+30

2) Then <em>add</em>: 27+30=57

3 0
4 years ago
Read 2 more answers
When both parties discuss the terms of a contract they are
marysya [2.9K]
B - Negotiating.

This is because they are communicating, they haven't yet agreed to anything or committed to the contract as neither parties have signed, thus leading to both C and D to be incorrect.

A, however, is not exactly a term used for this situation - contracting is more of a term used to say someone contracted a disease or the flu or etc. 

Therefore, B would be correct as they are indeed negotiating the terms of the contract.

Hope this helps!
7 0
4 years ago
What is the magnitude of 6 2i?
Flura [38]
Hello,

z=6+2i
||z||=√(6²+2²)=√40=2√10
3 0
3 years ago
Read 2 more answers
Other questions:
  • 9% of what equals 4.5
    11·2 answers
  • 1. Find the length of the missing side:<br>35cm<br>60.5°​
    7·1 answer
  • Laura sells beaded necklaces each large necklace sells for $6.80 and each small necklace sells for $5.10 how much will she earn
    14·1 answer
  • A cereal box contains 5 cups of cereal.
    11·1 answer
  • If you are given odds of 6 to 7 in favor of winning a​ bet, what is the probability of winning the​ bet?
    12·1 answer
  • Does anyone know this answer??<br> Choices- 333.50, 63.50, 153.50, 166.75
    15·2 answers
  • What is the solution to the equation below? Round your answer to two
    11·2 answers
  • 1st question: Reuben received 80 dollars. Write a signed number to represent this change.
    15·1 answer
  • The circumference C of a circle is found with the formula C=2(3.415)r​
    5·2 answers
  • For the high school basketball game, it costs $8 for every 2 tickets.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!