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
Nat2105 [25]
3 years ago
12

Four times a certain number decreased by twice the same number gives 17. the number is​

Mathematics
1 answer:
Verdich [7]3 years ago
4 0

Answer:

8.5

Step-by-step explanation:

You might be interested in
The value of 3b2 – b when b = 5
Mila [183]

Answer:

70

Step-by-step explanation:

Evaluate 3 b^2 - b where b = 5:

3 b^2 - b = 3×5^2 - 5

Hint: | Evaluate 5^2.

5^2 = 25:

3×25 - 5

Hint: | Multiply 3 and 25 together.

3×25 = 75:

75 - 5

Hint: | Subtract 5 from 75.

| 7 | 5

- | | 5

| 7 | 0:

Answer:  70

6 0
3 years ago
He sum of two numbers is 43 and the difference is 5. What are the numbers ?
lord [1]

Answer:

24,19

Step-by-step explanation:

24+19=43

24-19=5

4 0
3 years ago
Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a m
LiRa [457]

Answer:

The Zscore for both test is the same

Step-by-step explanation:

Given that :

TEST 1:

score (x) = 75

Mean (m) = 65

Standard deviation (s) = 8

TEST 2:

score (x) = 75

Mean (m) = 70

Standard deviation (s) = 4

USING the relation to obtain the standardized score :

Zscore = (x - m) / s

TEST 1:

Zscore = (75 - 65) / 8

Zscore = 10/8

Zscore = 1.25

TEST 2:

Zscore = (75 - 70) / 4

Zscore = 5/4

Zscore = 1.25

The standardized score for both test is the same.

7 0
2 years ago
A musician spends 90 minutes practicing piano and guitar the time spent is 30 minute less than twice the same time spent on guit
11111nata11111 [884]

Answer:

The which spends on the piano is( 50 minutes )

The which spends on the guitar is( 40 minutes )

Step-by-step explanation:

The steps of the solution in the above photo

I hope that is useful for you :)

8 0
3 years ago
Are there any solutions
Travka [436]

Answer: B Exactly one solution

Step-by-step explanation:

5x+8-7x=-4x+1

-2x+8=-4x+1

-2x+4x=-7

2x=-7

x=-7/2

8 0
3 years ago
Other questions:
  • What is 49% as a fraction?
    9·2 answers
  • What is 3x-4=18+5x ?
    9·1 answer
  • A pair of fair dice is rolled. Let E denote the event that the number falling uppermost on the first die is 2, and let F denote
    15·1 answer
  • A plane took a Navy Seal to a height of 10,000 feet above sea level. The Navy Seal jumped out of the plane and parachuted into t
    12·2 answers
  • Why are the elements placed into groups/families?
    13·1 answer
  • Triangles ABC and DEF are similar. Find the length of side DF
    10·1 answer
  • 6×(36÷12)^2+8=6×( )^2+8
    13·1 answer
  • In science, students are observing the growth of two plants. Plant A recieves sunlight and Plant B does not. The graph and table
    13·2 answers
  • What is something definitely true about the value x ?
    8·2 answers
  • < Question 7, 1.5.25 >
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!