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
Tju [1.3M]
3 years ago
15

Equation 4x - 9 = 7x + 12 explanation please

Mathematics
1 answer:
dedylja [7]3 years ago
8 0

Answer:

x=-7

Step-by-step explanation:

first, subtract 4x from both sides. then you'll get:

-9=3x+12

next subtract 12 from both sides. Then you'll get:

-21=3x

then you divide each side by 3. You get:

x=-7

You might be interested in
What is the area? Plz show me step by step. :)
ANEK [815]

Answer:

124

Step-by-step explanation:

A triangle is BH/2

6.2 is the height and 5 is the base

one triangle is 15.5 so multiply it by 8 since its an octagon

7 0
3 years ago
Guys I really need some help with this one!
nika2105 [10]

Answer:

f( 1 ) = 3

Step-by-step explanation:

Given the linear function, f(x) = -4x + 7, we could easily find f( 1 ) by substituting the value of the input, x = 1, into the function.

f(x) = -4x + 7

f( 1 ) = -4( 1 ) + 7

f( 1 ) = -4 + 7

f( 1 ) = 3

Therefore, the output value is f( 1 ) = 3.

7 0
3 years ago
What is 9,167.364 in expanded form?
Basile [38]

Answer:

9,000+100+60+7+.3+.06+.004

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A quality-control engineer samples 100 items manufactured by a certain process, and finds that 15 of them are defective. True or
goldenfox [79]

Answer: b) The probability that an item produced by this process is defective is likely to be close to 0.15, but not exactly equal to 0.15.

Step-by-step explanation:

Given that:

Number of samples = 100

Number of defective samples = 15

Proportion =number defective samples / total samples

P = 15 / 100 = 0.15

Hence, the probability that an item produces is defective is 0.15.

However, due to sampling Variations, the probability will be corrected for these variations. Hence, probability that an item produced by this process is defective is likely to be close to 0.15, but not exactly equal to 0.15.

5 0
2 years ago
How to find the rate of change of the volume of cone?
sleet_krkn [62]
You can use calculus ( related rates).  Given the rate os change of the radius for example you can find the rate of change of  volume using differential calculus.
8 0
3 years ago
Other questions:
  • Find the range of the following data set. 1 1/4,5/8,3/4 ,1/2 ,1 1/2, 1 3/4
    5·2 answers
  • What is the value of the x variable in the solution to the following system of equations?
    13·2 answers
  • Can someone check my answer
    8·1 answer
  • When would there be only four different equations for a set of math mountain numbers
    14·2 answers
  • $45.00 for 9 pounds what is the unit rate?
    8·2 answers
  • Solve the following inequality 90 > 10x + 80
    7·1 answer
  • At 6:00 A.M., the temperature was 62°F. The temperature then increased about 3° every hour. What is the BEST
    14·2 answers
  • Consider the following linear equations. y = 2x + 5 y = 2x - 3 Which statement below if True?
    13·1 answer
  • "The straight line of depreciation for a luxury car is modeled by the following equation:
    8·1 answer
  • Madison will use a 1/5 gallon pitcher to fill an empty 7/8 gallon jug for her lemonade stand. How much lemonade will she need to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!