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
Soloha48 [4]
3 years ago
5

One fifth of a number plus five times that number is equal to seven times the number less 18. find the number.

Mathematics
1 answer:
Schach [20]3 years ago
6 0
OK.  First we have to figure out names for all the numbers you mentioned.

The mysterious number . . . . . call it Q
One fifth of the number . . . . . 0.2 Q
Five times the number . . . . . . 5 Q
Seven times the number . . . . 7 Q

(One fifth plus five times the number) . . . 5.2 Q
(Seven times the number less 18) . . . . . . 7 Q - 18

You said that these last two things are equal, 

so I can write . . . . . . . . . . . . . . . . . .  7 Q - 18  =  5.2 Q

Now, subtract  7Q  from each side . . .  -18 = -1.8 Q

Divide each side by  -1.8 . . . . . . . . . .  10 = Q 
You might be interested in
Ussions
ankoles [38]

Answer:

All points on line CD are equidistant from A and B

Step-by-step explanation:

Given that point A is the center of circle A and point B is the center of circle B,  and the circumference of circle A passes through the center of circle B which is point B and vice versa.

Therefore we have;

The radius of circle A = The radius of circle B

Which gives;

The distance of the point C to the center A is equal to the distance of the point C to the center B

Similarly, the distance of the point D to the center A is equal to the distance of the point D to the center B

So also the distances of all points on the line from the center A  is equal to the distances of all points on the line from the center B.

6 0
2 years ago
•°|NO LINKS PLEASE, REAL ANSWERS ONLY!|°•
barxatty [35]

Answer:

V=75 in 3 9 in. 17 in. There are 1 more cubic inches of sand in the pyramid with the greater volume.

Step-by-step explanation:

8 0
3 years ago
Help? (i mark brainlist)
Annette [7]
The answer is D
Hope this helps :)
3 0
2 years ago
Read 2 more answers
Find an angle between 0 and 2 that is coterminal with the given angle.
galben [10]

Answer:

40degres

Step-by-step explanation:

4 0
2 years ago
Rhonda is making an input/output table.When she sees the number 5,she writes 3.0.When she sees 10,she writes 6.0.When she sees 4
zhannawk [14.2K]

7.2 and 7 are the answers

4 0
3 years ago
Other questions:
  • The table shows Mr. Winkler’s schedule for paying off his credit card balance. A 5-column table with 4 rows. Column 1 is labeled
    10·2 answers
  • You estimate that a jar contains 68 marbles. The actual number of marbles is 60. find the percent error.
    5·2 answers
  • The numbers value of 6,035 with the 3 underlined
    11·2 answers
  • What is the exterior and interior angle of a 18 sided polygon
    12·1 answer
  • Convert vector B= 12i+5j to polar coordinates
    10·1 answer
  • A student needs to make a circular cardboard piece with an area between 154 square inches and 616 square inches. The function f(
    9·1 answer
  • F(x) = x2 − 8x + 15 g(x) = x − 3 h(x) = f(x) ÷g(x)
    12·2 answers
  • How many Wednesdays go into 180 days if you start on Monday?
    15·1 answer
  • What is the value of x in the figure?<br> 60°<br> (2x)
    12·2 answers
  • A line has a slope of -1/2 and a why intercept of -2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!