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
juin [17]
3 years ago
10

If x-5=2 then find the value of 6x-20

Mathematics
2 answers:
Alborosie3 years ago
7 0
First solve the first equation to find x.

x-5=2
x=7

Now plug it in to the other equation to get your answer.

6(7)-20
42-20
22

The answer is 22.
swat323 years ago
4 0
So x in the fist problem is 7. So the x is substituted be 7. guessing you want me  to solve,
6x-20
=6(7)-20
=42-20
=22

You might be interested in
Reduce to simpleast form. -5/8 - (-4/3)=
vfiekz [6]
-\frac{5}{8}  -(-\frac{4}{3} )= -\frac{5}{8}^{(3} +  \frac{4}{3}^{(8} =  \frac{-15+32}{24}=  \frac{17}{24}
3 0
3 years ago
GAMES At the Befrway Outlet store, you buy x
gizmo_the_mogwai [7]
Y= 13x+4x
y equals the amount of money spent
4 0
3 years ago
What is 4x to the power of 2 - x = 18 in standard form
Marianna [84]

Recall that exponents are a way of representing repeated multiplication. For example, the notation 54 can be expanded and written as 5 • 5 • 5 • 5, or 625. And don’t forget, the exponent only applies to the number immediately to its left, unless there are parentheses.

What happens if you multiply two numbers in exponential form with the same base? Consider the expression (23)(24). Expanding each exponent, this can be rewritten as (2 • 2 • 2) (2 • 2 • 2 • 2) or  2 • 2 • 2 • 2 • 2 • 2 • 2. In exponential form, you would write the product as 27. Notice, 7 is the sum of the original two exponents, 3 and 4.

What about (x2)(x6)? This can be written as (x • x)(x • x • x • x • x • x) = x • x • x • x • x • x • x • x  or x8. And, once again, 8 is the sum of the original two exponents.

3 0
3 years ago
Solve 3 ^ x + 6 = 3 ^ 4
aleksklad [387]

Answer:

3.93 (approx.)

Step-by-step explanation:

3 ^ x + 6 = 3 ^ 4 can be rewritten as 3 ^ x  = 3 ^ 4  -   6, or

3^x = 81 - 6  =  75.

Then 3^x = 75, or

x*ln 3 = ln 75

Solving for x:  

x = (ln 75) / (ln 3) = 3.93 (approx.)

8 0
3 years ago
2/3 of a number is 11 work out half the number
Ugo [173]

Answer:

33/4

Step-by-step explanation:

Let n = number

2/3 * n = 11

Multiply each side by 3/2

3/2 * 2/3 n = 11 * 3/2

n = 33/2

We want to find 1/2 of n

1/2 * 33/2 = 33/4

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x in simplest radical form ?
    11·1 answer
  • Solve the system y = 2x + 6 and 3y = 6x + 18 by using graph paper or graphing technology. What is the solution to the system?
    13·2 answers
  • The sum of two twin primes is 60. What are the numbers
    13·2 answers
  • The value of 3 in 46.132 is how many times the value of the 3 in 8.553<br><br>A 10<br>B 1 <br>C 1/10
    6·1 answer
  • How do you calculate the explicit solution to dP/dt=kP-h?
    9·1 answer
  • Find the range and interquality for 5,9,6'8'7
    12·2 answers
  • What is the radius, in centimeters, of a circle that has a circumference of 161 centimeters?
    13·1 answer
  • If f(x)= (3+x)/(x-3), what is f(a+2)
    8·1 answer
  • Convert 1100111 into decimal numbers ​
    14·1 answer
  • Please help me with this problem<br> I'll mark brainliest!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!