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
Maslowich
4 years ago
9

What is the value of x?

Mathematics
2 answers:
Taya2010 [7]4 years ago
8 0

mean a value that is not yet known.

It is called a "variable" or sometimes an "unknown".

In x + 2 = 7, x is a variable, but we can work out its value if we try!

A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

See: Variable

Introduction to Algebra

PilotLPTM [1.2K]4 years ago
3 0

Answer:

360=2(x+30)+2x

360=2x+60+2x

300=4x

x=75

You might be interested in
Does each equation represent exponential decay or exponential growth?
lisov135 [29]

Answer:

1. H = 5.9(0.82)^{t}. Exponential decay function.

2. y = 0.8(3.6)^{t}. Exponential growth function.

3. f(t) = 0.72(15)^{t}. Exponential growth function.

4. A = \frac{4}{9} (8)^{t}. Exponential growth function.

5. A = (\frac{4}{3})^{t}. Exponential growth function.

6.  H = \frac{7}{2} (\frac{5}{6} )^{t}. Exponential decay function.

7. g(x) = 0.3(x). Not an exponential function.

Step-by-step explanation:

1. H = 5.9(0.82)^{t}. This is an exponential decay function.

As the value of t increases H-value decreases.

2. y = 0.8(3.6)^{t}. This is an exponential function of growth.

As the value of t increases y-value also increases.

3. f(t) = 0.72(15)^{t}. This is an another example of exponential growth function.

As the value of t increases f(t)-value also increases.

4. A = \frac{4}{9} (8)^{t}. This is again an example of exponential growth function.

As the value of t increases A-value also increases.

5. A = (\frac{4}{3})^{t}. This is again an example of exponential growth function.

As the value of t increases A-value also increases.

6. H = \frac{7}{2} (\frac{5}{6} )^{t}. This is another an example of exponential decay function.

As the value of t increases, H-value decreases.

7. g(x) = 0.3(x). This is a non-exponential function. (Answer)

4 0
4 years ago
The variable z is inversely proportional to x. When x is 6, z has the value 0.5. What is the value of z when x= 14?
Lilit [14]
Z is inversely proportional to X is the same as
z is directly proportional to 1/X
which can be written like this:-
y=k/X
________
0.5=k/6
0.5*6=k/6*6
k=3 ;
________
z = 3/14
Z = 0.2
7 0
3 years ago
Use the vertex formula to find the vertex of the quadratic function f(x) = -x2 + 4x - 8.
Irina18 [472]
The vertex of f(x)=-x2+4x-8 is (2, -4)
8 0
3 years ago
PLZZ HELP I WILL GIVE YOU 30 POINTS!!!!!<br> ​ <br> ​ <br> ​
elena-s [515]
7 cheese:8
7 pepperonis:3
7 veggie:1
8 cheese:4
8 pepperoni :5
8 veggie:3
7 0
3 years ago
Record your<br> ! 1)<br> 5x = 125
KengaRu [80]
The answer is X= 25
You just have to divide 125 by 5
3 0
3 years ago
Other questions:
  • A sweater originally costs $36. If the sweater is on sale for $30.24 what is the percent of the discount
    12·2 answers
  • Write the number 7.748 x 10-5 in standard form.
    12·1 answer
  • George jumped 6 7/8 feet in a contest.Robert jumped 6 1/2 feet. Who jumped farther,by how much?
    15·2 answers
  • Which expression shows 0.95 in expanded form?
    8·1 answer
  • The mixed number to match 1.35
    10·2 answers
  • Plz help!!!!!!!!!!!!
    10·2 answers
  • The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st
    5·1 answer
  • A, B &amp; C form the vertices of a triangle, where
    10·1 answer
  • Got a question on my math quiz asking the questions below. The question marked me as wrong, but didn’t tell me what I got wrong/
    8·1 answer
  • I WILL MARK AS BRAINLIEST! Solve for X and Y
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!