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tino4ka555 [31]
3 years ago
11

A number is 1/7 another number. the difference of the number is 18. assume that you are subtracting the smaller number from the

larger number.
find the number
Mathematics
1 answer:
kumpel [21]3 years ago
8 0
Let us assume the bigger number = x
Then the smaller number that we get = x/7
Now it is given in the question that we have to subtract the smaller number from the bigger number and the result is 18. Based on this information, we can create an equation
(x/7) - x = 18
(x - 7x)/7 = 18
-6x/7 = 18
-6x = 18 * 7
-6x = 126
-x = 126/6
-x = 21
x = -21
Now putting the value of x in
x/7 = - 21/7
      = -3
Then the two numbers are -21 and -3.
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Gwar [14]

Answer:

1 1/2

Step-by-step explanation:

8 0
3 years ago
Here is another math question 6/3+(-1/3)
gtnhenbr [62]
<span>6/3+(-1/3)
</span><span>= 6/3-1/3
= 5/3
= 1 2/3</span>
6 0
3 years ago
Find the Missing angle <br>​
pashok25 [27]

Answer:

50

Step-by-step explanation:

70+60 =130

180-130 = 50 degrees

4 0
3 years ago
Read 2 more answers
Item 15
blsea [12.9K]
The right question is that the lowest altitute is 3^8 feet

You are told that the highest altitude is 3 times the lowest altitude =>

highest altitude = 3 * lowest altitude = 3 * 3^8 feet.

Now you use the ruel of mutiplication of powers with the same base: copy the base and sum the exponents => 3 * 3^8 = 3 ^(1+8) = 3^9.

Note: remember that 3 = 3^1.

Answer: 3^9 feet
8 0
3 years ago
If f(x) =5x-25 and g(x) = (1/5)X+5, which expression could be used to verify g(x) is the inverse of f(x)
mina [271]
Answer:
f(g(x)) = x

Explanation:
In order to prove that one function is the inverse of the other, all you have to do is substitute in the main function with the inverse one and solve. If the result is x, then it is verified that one function is the inverse of the other. 
Now for the given functions we have:
<span>f(x) =5x-25
</span><span>g(x) = (1/5)x+5
We want to prove that g(x) is the inverse of f(x).
Substitute in the above formula and compute the result as follows:
f(g(x)) = 5(</span>(1/5)x+5) - 25
          = x + 25 - 25
          = x
The final result is "x", therefore, it is verified that g(x) is the inverse of f(x)

Hope this helps :)
7 0
3 years ago
Read 2 more answers
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